Instructions1 xFinalPaperInstructions xarticle1-economics Article2-Harvard
III. Guidelines for the Paper. Due in both hard-copy and electronic form in class on December 4
A. Basic Reference: The basic reference for all aspects of the paper, especially acknowledging sources, will be either A Student’s Guide for Writing College Papers or A Manual for Writers of Term Papers, Theses and Dissertations. Both are by Kate Turabian and published by the University of Chicago Press. Any comparable conventional manual will also be acceptable.
B. Recommended Structure of the 3F03 Final Paper (Length of paper: 8-9 pages). Section 1. Economic questions and policy relevance of your papers as a group (1-2 pages).
THERE IS NO NEED TO LIST THE PAPERS AT THE BEGINNING.
Section 2. First Paper (approximately 2-3 pages)
Economic questions Policy Relevance Data and estimation methods Main Results Policy Implications Internal and External strengths and weaknesses (instructions for Summary above)
Section 3. Second Paper (same topics as for first paper), 2-3 pages
There is no need to repeat if, for example, two papers use the same data source. Just refer to the description in the earlier paper.
Final Section. (1-2 pages) Sum conclusions regarding questions and policy
Compare findings if questions are similar. Which one do you believe more?
Unanswered questions and agenda for future research C. A Few Basic Rules
o Each paper should have a title page and a list of references. Please use the short form for referencing, e.g., (Mulroney 1992 p. 12) and then give the full citation in the List of references. Footnotes and end notes are discouraged.
o The body should contain approximately 10 pages with double spacing, 1″ margins and 10 or 12 characters per inch (an 11 or 12 point font).
o Number your pages and make sure all pages are legible. o Points will be deducted for poor spelling and grammar. Use a good spell check and grammar check. o Please avoid a large number of quotations. o A partial list of practices to avoid
4
???? Longparagraphs.(Paragraphsareusedtoindicateachangeintopic.) ???? Contractions(won’t,can’t,etc.) ???? Frequentuseofthefirstperson(Iwilldiscuss,Iwillshow,etc.) ???? Informalor“chatty”styleofwriting
D. Papers for other courses. A paper may be done for this course and another course but only when the two faculty members involved have cleared the topic in advance. In general, more will be expected of a joint paper.
E. Acknowledging Sources. Please be VERY careful to acknowledge all sources which you consulted during the preparation of your paper. You should reference not just published work, but also unpublished papers, including those of other students, and previous papers of your own. Each source should be acknowledged by author and date in the text. THE PAPER WILL BE SUBMITTED TO TURNITIN.COM. This tool provides a very effective report on the extent to which your text matches the text in journal articles, working papers and other student papers. NOT ONLY OUTRIGHT PLAGIARISM WILL BE PENALIZED; POINTS WILL BE DEDUCTED FOR FAILURE TO ACKNOWLEDGE DIRECT QUOTES TAKEN FROM OTHER SOURCES.
F. Consulting the Instructor. Please be sure to consult me early on if you are having difficulty with getting going on your paper. It is my job to help you get started, not just to grade the paper. Also see me for help with references at any time.
G. Key Goal for the Paper. Your main job is to demonstrate your understanding of what constitutes strong and weak economic research, that is, to evaluate the quality of the methods rather than your personal agreement (or not) with any given policy position. I want your paper to be a balanced review of evidence by a judge rather than the one-sided summation to the jury by a lawyer. Keep that analogy in mind. Your goal is to write a good (balanced) judicial review and to avoid writing a good (one-sided) advocate’s brief.
H. Writing Help. McMaster students now have free access to an on-line program to help with writing. The user copies and pastes text into the program and receives notification of errors and suggestions for corrections. This
program is called Grammarly (formerly Sentence Works). Registration is at https://ed.grammarly.com/register/signup/features/?edu=true. I encourage you to try this and give me feedback.
The Writing Clinic is in the Centre for Student Development (basement of the University Centre) to help students with writing problems. You can have a one-on-one session with a Writing Clinic Peer by making an appointment. See http://csd.mcmaster.ca/academic/. Note that your assignments will be graded on both economic content and writing style.
This is what you need to do:
General notes:
First 3 pages:
Section 1:
In order to complete 3 pages, I want you to write the follow about the articles:
For each paper, what kind of data set was used and the methods used to conclude their research and findings. This means what experiments did they do, what happened and what were the results?? Also include the null-hypothesis from every paper that is written.
Each time you talk about this, make sure you say which paper you are talking about and include in text citations!
Policy Implications
For each paper, talk about the policy implications of the paper. Write about each paper separately. This means different paragraph for each paper when you are talking about the papers.
NOTE: Write about each paper separately, when you are talking about the data, methods used, policy. I want everything about the papers written separately. For example: 1.5 pages about paper 1 and 1.5 pages about paper two!
Final Section (1-2 pages)
Sum conclusions regarding questions and policy
Compare findings if questions are similar. Which one do you believe more?
Unanswered questions and agenda for future research
General notes:
When you are referring to the papers, please do in text citations.
If you do not know what is, look it up! I do not want the references in the bottom.
Compare the articles together and say which one you are talking about! Use in text citation and say which one you agree with more and why
III. Guidelines for the Paper. Due in both hard-copy and electronic form in class on December
4
A. Basic Reference: The basic reference for all aspects of the paper, especially acknowledging sources, will be either A Student’s Guide for Writing College Papers or A Manual for Writers of Term Papers, Theses and Dissertations. Both are by Kate Turabian and published by the University of Chicago Press. Any comparable conventional manual will also be acceptable.
B. Recommended Structure of the 3F03 Final Paper (Length of paper: 8-9 pages). Section 1. Economic questions and policy relevance of your papers as a group (1-2 pages).
THERE IS NO NEED TO LIST THE PAPERS AT THE BEGINNING.
Section 2. First Paper (approximately 2-3 pages)
Economic questions Policy Relevance Data and estimation methods Main Results Policy Implications Internal and External strengths and weaknesses (instructions for Summary above)
Section 3. Second Paper (same topics as for first paper), 2-3 pages
There is no need to repeat if, for example, two papers use the same data source. Just refer to the description in the earlier paper.
Final Section. (1-2 pages) Sum conclusions regarding questions and policy
Compare findings if questions are similar. Which one do you believe more?
Unanswered questions and agenda for future research C. A Few Basic Rules
o Each paper should have a title page and a list of references. Please use the short form for referencing, e.g., (Mulroney 1992 p. 12) and then give the full citation in the List of references. Footnotes and end notes are discouraged.
o The body should contain approximately 10 pages with double spacing, 1″ margins and 10 or 12 characters per inch (an 11 or 12 point font).
o Number your pages and make sure all pages are legible. o Points will be deducted for poor spelling and grammar. Use a good spell check and grammar check. o Please avoid a large number of quotations. o A partial list of practices to avoid
4
Longparagraphs.(Paragraphsareusedtoindicateachangeintopic.) Contractions(won’t,can’t,etc.) Frequentuseofthefirstperson(Iwilldiscuss,Iwillshow,etc.) Informalor“chatty”styleofwriting
D. Papers for other courses. A paper may be done for this course and another course but only when the two faculty members involved have cleared the topic in advance. In general, more will be expected of a joint paper.
E. Acknowledging Sources. Please be VERY careful to acknowledge all sources which you consulted during the preparation of your paper. You should reference not just published work, but also unpublished papers, including those of other students, and previous papers of your own. Each source should be acknowledged by author and date in the text. THE PAPER WILL BE SUBMITTED TO TURNITIN.COM. This tool provides a very effective report on the extent to which your text matches the text in journal articles, working papers and other student papers. NOT ONLY OUTRIGHT PLAGIARISM WILL BE PENALIZED; POINTS WILL BE DEDUCTED FOR FAILURE TO ACKNOWLEDGE DIRECT QUOTES TAKEN FROM OTHER SOURCES.
F. Consulting the Instructor. Please be sure to consult me early on if you are having difficulty with getting going on your paper. It is my job to help you get started, not just to grade the paper. Also see me for help with references at any time.
G. Key Goal for the Paper. Your main job is to demonstrate your understanding of what constitutes strong and weak economic research, that is, to evaluate the quality of the methods rather than your personal agreement (or not) with any given policy position. I want your paper to be a balanced review of evidence by a judge rather than the one-sided summation to the jury by a lawyer. Keep that analogy in mind. Your goal is to write a good (balanced) judicial review and to avoid writing a good (one-sided) advocate’s brief.
H. Writing Help. McMaster students now have free access to an on-line program to help with writing. The user copies and pastes text into the program and receives notification of errors and suggestions for corrections. This
program is called Grammarly (formerly Sentence Works). Registration is at https://ed.grammarly.com/register/signup/features/?edu=true. I encourage you to try this and give me feedback.
The Writing Clinic is in the Centre for Student Development (basement of the University Centre) to help students with writing problems. You can have a one-on-one session with a Writing Clinic Peer by making an appointment. See http://csd.mcmaster.ca/academic/. Note that your assignments will be graded on both economic content and writing style.
This paper presents preliminary findings and is being distributed to economists
and other interested readers solely to stimulate discussion and elicit comments.
The views expressed in this paper are those of the authors and do not necessarily
reflect the position of the Federal Reserve Bank of New York or the Federal
Reserve System. Any errors or omissions are the responsibility of the authors.
Federal Reserve Bank of New York
Staff Reports
Tuition, Jobs, or Housing:
What’s Keeping Millennials at Home?
Zachary Bleemer
Meta Brown
Donghoon Lee
Wilbert van der Klaauw
Staff Report No. 700
November 2014
Revised July 2017
Tuition, Jobs, or Housing: What’s Keeping Millennials at Home?
Zachary Bleemer, Meta Brown, Donghoon Lee, and Wilbert van der Klaauw
Federal Reserve Bank of New York Staff Reports, no. 700
November 2014; revised July 2017
JEL classification: D14, E24, R21
Abstract
This paper documents marked changes in young Americans’ residence choices over the past
fifteen years, with recent cohorts decreasingly living with roommates and instead lingering much
longer in parents’ households. To understand the sources and implications of this decline in
independence, we estimate the contributions of local economic circumstances to the decision to
live with parents or independently. Transition models, local aggregates, and state-cohort tuition
patterns are used to address the likely presence of individual- and neighborhood-level unobserved
heterogeneity. In regions where many students are exposed to college costs, we find that
increased tuition is associated with more coresidence with parents and less living with
roommates. Where fewer youth confront college tuition, however, local job market conditions are
paramount in shaping the decision of whether to live with parents.
Key words: household formation, mobility, student loans
_________________
Lee and van der Klaauw: Federal Reserve Bank of New York (emails: donghoon.lee@ny.frb.org,
wilbert.vanderklaauw@ny.frb.org). Bleemer: University of California at Berkeley (email:
bleemer@berkeley.edu). Brown: Stony Brook University (email: meta.brown@stonybrook.edu).
This paper was previously distributed under the title “Debt, Jobs, or Housing: What’s Keeping
Millennials at Home?” The authors thank their referees, Andrew Haughwout and Henry
Korytkowski; seminar participants at the Federal Reserve Banks of Boston and New York, the
University of Virginia, and the Urban Institute; and conference participants at the Federal Reserve
Bank of St. Louis, the Family Economics Workshop of the Barcelona GSE 2015 Summer Forum,
the FDIC Consumer Research Symposium, Goldman Sachs’ Millennials and Housing Day, New
York University, and the University of California at Los Angeles’ Ziman Center for Real Estate
for valuable comments. The views expressed in this paper are those of the authors and do not
necessarily reflect the position of the Federal Reserve Bank of New York or the Federal Reserve
System.
1
Recent cohorts of young Americans have, on average, extended their stays in their
parents’ households. After eventually moving out, their members return home to parents at
higher rates. Climbing U.S. trends toward co-residence with parents are displayed in Duca
(2014) for 1962-2012 and Matsudaira (2016) for 1960-2007. In this paper, we use millions of
credit records from the Equifax-sourced Federal Reserve Bank of New York Consumer Credit
Panel (CCP) to describe young Americans’ residential arrangements from 2004-2015. Among
25-year-olds, we report an 11.4 percentage point increase in living with parents or similar elders
and a 12.8 percentage point decline in living with groups of (similarly-aged) roommates. For
these same years, several researchers document first stability and then a steep decline in young
Americans’ rate of homeownership.1 The dual trends of extended co-residence with parents and
decreasing participation in rental and housing markets may contribute to slowed growth in both
consumption and the housing market, as young people living “at home” delay major purchases
and general entry into economic life.
This paper investigates the residence choices of young people in the Consumer Credit
Panel, and their relationship to evolving local house prices, local employment conditions, and the
cost of college for local students. We document upward trends in aggregate rates of co-residence
with parents and other elders among 25-year-olds that are not only persistent but also wide-
spread, with substantial increases in co-residence with parents in all 48 contiguous states. In
addition, we discuss a range of co-residence measurement concerns and cite outside evidence
suggesting a steep upward trend.2,3
What are the likely consequences of lingering at home for young people’s economic
lives? Relatedly, what consequences might these trends have for the duration of the ongoing U.S.
economic recovery? In order to answer these questions, we must understand the origins of the
decline in independent living among American youth. Recent work on household formation,
such as Dyrda, Kaplan, and Rios-Rull (2012), Duca (2013), and Matsudaira (forthcoming), has
analyzed the link between an observed decline in household formation and changes in
1 Agarwal, Hu, and Huang (2013) , Brown and Caldwell (2013), Brown, Caldwell, and Sutherland (2014), and
Brown et al (2015), the CFPB (2013), and Mezza, Sherlund, and Sommer (2014) report substantial declines in youth
homeownership since 2007.
2 See, for example, Mykyta and Macartney (2011).
3 The link between homeownership and student debt has been examined in the PSID and the NELS88 by Cooper and
Wang (2014), in the SCF by Gicheva and Thompson (2014), in the 1997 cohort of the NLSY by Houle and Berger
(2014), and in the CCP by Bleemer et al. (2017). Kurz and Li (2015) address the link between student debt and auto
purchase.
2
employment and poverty. Along with Matsudaira, Duca, and Dyrda, Kaplan, and Rios-Rull, our
first candidate explanation for youths’ increasing reliance on parents might be labor market
difficulties. Following Agarwal, Hu, and Huang, we might next suspect that youth residence
choices respond to local house prices. Finally, we and others have studied the unprecedented
U.S. student debt climb that coincides with the trend toward living with parents.4 Figure 1
depicts the enrollment-weighted mean of public and private college and university tuition for
each U.S. state and the District of Columbia from 2004 to 2015. College costs have risen steeply,
with mean tuition across the states rising by $6576, or 76 percent, over the period. If the financial
burden of college is increasingly borne by students and families, we might also expect this to
influence students’ ability to live independently following school. To what extent, then, can we
say that the observed climb in intergenerational co-residence coincides with economic challenges
to youth such as weak job markets, costly housing, or high tuition?
Worth noting is that national labor and housing market trends display pronounced
cyclicality, while co-residence with parents and college costs follow comparatively acyclical
upward trends. Of course, these aggregates mask evolving local relationships among housing
cost, labor markets, and youth residence choices. The fine geographic data, vast sample size, and
long panel of the CCP allow us to observe the residence choices of large numbers of 25-year-
olds at fine geographic levels, and to compare them over many birth cohorts. All of this allows
us to study youth residence choices under a rich variety of economic circumstances. Our hope is
that the resulting understanding of the origins of the decline in independent living yields insights
regarding its relationship to existing policy, its potential consequences for young Americans’
consumption and welfare, and its likely persistence or development in the future. While labor
and housing market origins may suggest a cyclicality in the rate of co-residence with parents,
college cost origins, given longstanding U.S. college tuition trends, may suggest an ongoing
decline in youth independence.
In an approach that builds on Ermisch (1999) and Kaplan (2012), we model the fraction
of young consumers who live with their parents, as well as the flows of young consumers into
and out of parents’ households over time, as a function of patterns in local unemployment, youth
unemployment, house prices, wages, and the enrollment-weighted average college tuition
4 See Brown et al. (2015a) and Dettling and Hsu (2014).
3
confronting a given cohort in a given state.5 We address endogeneity concerns regarding the
college spending of an individual student or family by estimating in state and county aggregates,
and by providing direct estimates of the relationship between state-cohort tuition levels and
subsequent co-residence. Our aim is to report intent-to-treat estimates of (an approximation of)
the gross tuition amount a student would be charged for college should she attend, given her state
and birth cohort.
Our estimates of the relationship among intergenerational co-residence choices and the
economic conditions under which they are made reveal markedly different decision processes in
regions where college is more and less relevant. In high college graduation rate regions, many
young students are exposed to college costs, and jumps in the tuition facing a college cohort are
met with extended periods of co-residence with parents, or more moving “home” in early
adulthood. For example, a $1000 increase in a state-cohort’s mean college tuition is associated
with a 0.72 percentage point increase in co-residence with parents.6 Given a $6202 increase in
mean tuition for the higher graduation rate states, tuition growth is able to account for 4.5
percentage points of their observed 10.5 percentage point growth in co-residence with parents at
age 25 from 2004 to 2015.
In low college graduation rate regions, fewer students confront college tuition, and local
job market conditions, with particular emphasis on wages, are the dominant economic factor in
young people’s decision to live with parents. An increase of $100 in average weekly wages is
associated with a 3.9 percentage point decline in co-residence with parents among the lower
college graduation rate states.7 What the high and low college graduation regions share in
common is a secular trend toward intergenerational co-residence: in all cases, and with or
without controlling for the levels or progress of economic circumstances, the coefficients we
estimate on indicators for each calendar year reflect steep and approximately monotonic growth
in intergenerational co-residence from 2004 to 2015. This growth is particularly pronounced
among the lower college graduation rate states.
5 Ermisch poses the question in the context of survey data on British youth of the 1990s, who made co-residence
choices under very different economic and social conditions, and for whom college cost was of little relevance.
Kaplan’s study emphasized high frequency job shocks and residential transitions, and also did not address college
costs.
6 This coefficient estimate differs significantly from zero at the five percent level.
7 This coefficient also differs significantly from zero at the five percent level.
4
Analysis of the geographic sources of the estimated tuition-co-residence relationship
indicates that their positive association arises primarily in the Northeast and Midwest, or,
alternatively, in more urban settings. All of these estimates align with the broader claim that we
observe a meaningful tuition-co-residence association where a greater share of youth attends
college, and hence where a greater share of youth is exposed to college costs.
If young Americans are increasingly living with parents, one might ask what residential
arrangements have fallen out of favor. Our estimates reveal declining secular trends in living
with two or more roommates that approximately offset the climb in living with parents. Rates of
living in couples or alone, controlling for economic factors, are comparatively stable. Estimates
relating state-cohort college costs to residential arrangements show that the afore-mentioned
$1000 hike in tuition for youth in high graduation states is associated not only with a 0.72
percentage point increase in co-residence with parents, but also with a 0.86 percentage point drop
in living with roommates, and little change in living alone or in couples. Hence youth in high
graduation states facing greater college costs appear to be foregoing rooming with peers for the
cost-saving option of living with parents.
Our transition model estimates of the rate at which American 23-to-25-year-olds move
home to parents suggest a protective effect of strengthening local labor markets on the
independence of youth. Here a one percentage point increase in local employment in the youth
location is associated with a 0.2 to 0.3 percentage point decline in the rate at which youth move
home to parents over the two years, and a $100 increase in average weekly wages for the county
over two years is associated with a 0.12 to 0.15 percentage point decline in the rate of moving
home to parents.8 By and large, the economic determinants of moving away from parents, if they
exist, are far less obvious. In contrast to the rate of moving home, we do not find a substantial or
significant association between employment or house prices and the rate at which youth in the
county who were living with parents at 23 achieve independence by 25. The one meaningful
association between economic growth and moving out is this: as wages rise in the parent
location, youth living with parents are considerably less likely to move out.
Section I of the paper discusses the emerging literature on the recent changes in youth
residence, and positions our paper within it. Section II describes the various data sources that we
employ, particularly the CCP, which is comparatively novel. In Section III, we present new
8 The employment and wage coefficient estimates are each significant at the one percent level.
5
evidence from the CCP on the (rapidly evolving) residential circumstances of 25-year-olds from
2004 to 2015. Section IV places this descriptive analysis of the data, and our subsequent
empirical models of intergenerational co-residence patterns and the decision to move home or
away, in the context of the existing theory of co-residence with parents developed by Kaplan
(2012). Section V lays out an empirical model of the stock of youth living with parents, along
with transition models of the flow to independence for youth living with parents and the flow
back home to parents for youth living independently. Section VI reports estimation results, and
Section VII offers some concluding thoughts.
I. Related literature
The existing literature emphasizes the relationship between employment conditions, or
poverty, and intergenerational co-residence. Earlier work, including Goldscheider and DaVanzo
(1985, 1989), Haurin et al. (1993), and Whittington and Peters (1996) establishes a longstanding
pattern of greater youth co-residence with parents when economic circumstances are poor. More
recently, Card and Lemieux (2000) demonstrate a noteworthy retreat home for Canadian youth in
response to the prolonged Canadian recession of the 1990s. Dyrda, Kaplan, and Rios-Rull (2012)
demonstrate a substantial influence of household formation responses to the business cycle on
the Frisch elasticity of labor supply. Duca (2013) finds a close relationship between 1979-2013
time series on U.S. 18-64-year-olds’ rate of co-residence with parents and U.S. poverty rates.
Two recent papers are particularly relevant to this study. Matsudaira (forthcoming) predates
the analysis here, and considers the influence of local economic conditions on co-residence with
parents in the U.S. over both an earlier and a longer window. He uses cross-sectional Census and
American Community Survey (ACS) data, available at varying intervals from 1960 to 2007, to
examine the relationship between state-level employment and housing conditions and co-
residence with parents over a 47-year period. Unlike our analysis, the paper is able to describe
patterns in the relationship between state economic conditions over a very long period of time,
which offers a better-informed picture of the potential role of social trends in living with parents.
Further, it paints a rich picture of the (considerable) degree of demographic heterogeneity in co-
residence patterns, a type of analysis which our administrative credit bureau data cannot support.
Our study also offers some unique evidence, owing to its panel approach, fine geography, recent
measures, range of residential outcomes, and introduction of college costs. By comparison,
6
Matsudaira’s data are cross-sectional, which restricts his analysis to coarse geography, for
reasons discussed below. His estimation window stops short of the largest downturn confronted
by U.S. youth in recent memory, and, finally, Matsudaira omits the cost of college.9
Student and other consumer debts, and their contribution to rising co-residence with parents,
are the primary interest of Dettling and Hsu (2014). Their study and ours have developed
concurrently and independently, using the same primary data source. The focus of the two
papers, however, is quite different; one might see them as complementary. Dettling and Hsu are
interested in the role of current individual debt levels and repayment, both in the decision to
move home and in the youth’s ability to recover from an economic shock and eventually regain
independence. As such, their estimation provides new insights into the relationship between debt
struggles—including, importantly, repayment struggles—and youth residence circumstances.
These findings are of clear independent value when compared with the results reported in this
paper (and vice versa, we believe). At the same time, current individual debt levels and
delinquency or default status contain the accumulated history of employment, housing, and other
shocks, and reflect past education choices. As such, estimated effects of, for example, realized
student loan delinquency on the move home or the move away do not isolate student loan effects
from, for example, the effects of recent job market fluctuations. Therefore Dettling and Hsu’s
estimates do not answer the specific question we pose in this paper regarding the separate
contributions of debt, jobs, and housing to 25-year-olds’ delayed independence, despite
providing many novel and policy-relevant insights on debt and co-residence.
II. Data
a. The FRBNY Consumer Credit Panel
The FRBNY Consumer Credit Panel (CCP) is a longitudinal dataset on consumer
liabilities and repayment. It is built from quarterly consumer credit report data collected and
provided by Equifax Inc. Data are collected quarterly since 1999Q1, and the panel is ongoing.10
Sample members have Social Security numbers ending in one of five arbitrarily selected,
randomly assigned pairs of digits. Therefore the sample comprises 5 percent of U.S. individuals
with credit reports (and Social Security numbers). The CCP sample design automatically
9 This is sensible, one might argue, given that the prevalence and balances of student loans were substantially lower
over much of his estimation window.
10 Student debt data are only available in the CCP starting in 2003.
7
refreshes the panel by including all new reports with Social Security numbers ending in the
above-mentioned digit pairs. Therefore the panel remains representative for any given quarter,
and includes both representative attrition, as the deceased and emigrants leave the sample, and
representative entry of new consumers, as young borrowers and immigrants enter the sample.11
While the sample is representative only of those individuals with Equifax credit reports, the
coverage of credit reports (that is, the share of individuals with at least one type of loan or
account) is fairly complete for American adults. Aggregates extrapolated from the data match
those based on the American Community Survey, Flow of Funds Accounts of the United States,
and SCF well.12 However, because we focus on young people’s co-residence decisions, we
restrict our dataset to 23- and 25-year-olds, which have lower coverage than later ages; coverage
over 2003-2013, the era used in our Section IV-V estimates, ranges between 83.4 and 93.9% for
25-year-olds, increasing from 2003 to 2007 and decreasing from 2007 to 2013 (compared to
estimates from the US Census).13 Nevertheless, we do have some information about individuals
not covered in the CCP; we know how many live in each state (based on Census figures), and we
know that, in nearly all cases, they do not have conventional consumer debt or credit (in which
case they would be covered by Equifax). We use this information to analyze and bound our
estimates below.14
We construct a cohort-level dataset from the CCP by extracting a panel of all individuals
who turn 23 or 25 years old in each year between 2003 and 2013. Because the time-series aspect
of our study drastically increases the number of observations, we only pull a random 1% sample
of the covered U.S. population, instead of the full CCP 5%. There are 546,824 25-year-olds in
the dataset, of whom we have 1.01 million observations.15
11 See Lee and van der Klaauw (2010) for details on the sample design.
12 See Lee and van der Klaauw (2010) and Brown et al. (2015b) for details.
13 We use the 2008 Census population projections as ‘true’ population data from 1999 to 2011 and the 2012 Census
year-age population projections for 2012 and 2013. In each case, these are the most accurate available data on
population size by age, year, and state.
14 Lee and van der Klaauw (2010) extrapolate similar populations of U.S. residents aged 18 and over, overall and by
age groups, using the CCP and the ACS, suggesting that the vast majority of US individuals at younger ages have
credit reports. Jacob and Schneider (2006) find that 10 percent of U.S. adults had no credit reports in 2006, and
Brown et al. (2015b) estimate that 8.33 percent of the (representative) Survey of Consumer Finances (SCF)
households in 2007 include no member with a credit report. They also find a proportion of household heads under
age 35 of 21.7 percent in the 2007 SCF, 20.64 in the 2007Q3 CCP, and 20.70 from Census 2007 projections,
suggesting good representation of younger households in the CCP.
15 Note that the panel data used in constructing some of the variables used in estimation contain roughly 10.1 million
person-year observations.
8
b. Other data sources
Table 1 summarizes the additional data that we use in our aggregate analysis of parental
co-residence. All financial variables in the paper are measured in 2013 dollars. The first
empirical model of co-residence we estimate below relies on data aggregated to the level of the
state by year by cohort. The descriptive statistics in Table 1 report means across these cells in the
pooled sample of aggregates. These descriptive measures of the pooled aggregates are
noteworthy for their variability. While the average state-year-cohort has a ratio of employed
residents to overall adult population of 57.54 percent, we also observe a standard deviation in
employment among the states of 13.27 percentage points. State-year-cohort means for house
price index, urban population, graduation rate, and tuition also vary widely in the pooled data.
Our next empirical specification estimates the relationship between the rate at which
youth transition away from or home to their parents’ households, and these are estimated using
county-cohort-year aggregates. Columns (2)-(4) provide average two-year changes in each
characteristic across county-cohort-year cells for three groups: all relevant youth, those living
independently, and those living with parents. The most noteworthy differences between the
locations of those living with parents and living independently are the more rapidly improving
labor markets characterizing the counties of the independent youth, and the more rapidly
growing house prices of the parent locations. This various measures taken from these data
remind us of the problems that arise when we measure local economic conditions in parent
neighborhoods for co-residing youth and youth neighborhoods for independent youth.
The annual county-level employment data are drawn from the Bureau of Labor Statistics’
(BLS) Quarterly Census of Employment and Wages (QCEW) program. The unemployment data
are reported on a quarterly basis, and they cover a total of 3,197 counties. In order to measure the
employment-to-population ratio, we also draw annual county-level population data from the US
Census’s Population Estimates.16 We calculate the youth unemployment rate at the state level
using employment data from 18- to 30-year-old individuals in the CPS, aggregated from months
to quarters.17 Average weekly county-level wage data for 3,197 counties are drawn from the
BLS’s QCEW program.
16 Data are from the 1990s Postcensal Estimates and the Vintage 2009 and 2014 estimates.
17 This aggregated sample of the CPS (over all months from 2003 to 2014) includes 3.2 million respondents between
age 18 and 30—19,333 of whom are missing labor force status information—though due to the sampling
9
House price appreciation values are calculated at the county level using data from the
CoreLogic home price index (HPI). The CoreLogic HPI uses repeat sales transactions to track
changes in sale prices for homes over time, with the January 2000 baseline receiving a value of
100. We aggregate an annual index to avoid seasonal variation. The CoreLogic data cover 1,266
counties (covering 89% of the 25-year-olds observed in our sample) in all 50 states and the
District of Columbia, but fail to cover some parts of rural America.18 In our regression analysis
below, we include an indicator for whether the individual lives in a county populous enough to
be covered by the CoreLogic HPI series. Its coefficient estimate goes largely unreported, but in
each case is available from the authors.19
Several of our estimates require a measurement of the college graduation rate for a given
cohort in a given state. We calculate the total number of graduates using the Integrated
Postsecondary Education Data System (IPEDS), summing over the number of graduates of four-
year and two-year institutions who receive degrees within 150% of the normal completion time
in that state-year. We calculate the average graduation rate as the ratio of the total number of
graduates to the total number of 24-year-olds in the state, as estimated by the US Census. The
mean graduation rate across states over our sample is 34.1 percent.
The analysis below also includes a set of college tuition measures. Ideally, we would like
to track the cost of college in a given location for a given cohort while the cohort is between ages
18 and 22, and then attach it to the cohort going forward as an indication of the cost of college
relevant to the cohort’s decision-making. However, given our objective of estimating outcomes
measured at ages 23 and 25, an age 18 to 22 tuition measure would require us to observe tuition
seven years before the last-observed outcome for each cohort. The IPEDS data on which we rely
for state tuition levels in each year are complete from 2000 forward. The CCP fourth-quarter
outcomes we track are available through the end of 2015. A seven-year look-back for tuition
would reduce our sample of 25-year-olds to the 2007-2015 window. In order to extend the
sample backward into the pre-recession window, we have chosen to shorten the ages at which we
measure tuition to ages 20 to 22. As a result, we estimate with a sample of 23-year-olds observed
methodology of the CPS, some people appear in the dataset twice (in two different quarters). Data are aggregated
using individual weights.
18 In our regression analysis below, we include an indicator variable for whether the individual lives in a county
covered by the CoreLogic HPI series, though we do not report the corresponding estimated coefficients.
19 We also draw the median value of owner-occupied housing units by county in 2000 from the US Census,
estimating county-level median house prices as the product of that and the CoreLogic series. These are employed in
some footnoted analysis of the relationship of intergenerational co-residence to the level of house prices.
10
from 2003 to 2013, and 25-year-olds from 2005 to 2015. We construct a series of state-cohort
average sticker and net costs of public and private colleges by pulling cost data from IPEDS.20
We define sticker cost as the sum of tuition and fees (excluding room and board) at US colleges
and universities, where net cost is sticker cost minus grant aid. Costs are averaged across
postsecondary institutions by state, sector, and year, where weighting in the averages is based on
each institution’s share of undergraduate enrollment.
Our decision to study sticker, and not net, prices of college in estimation sections V and
VI is guided primarily by one concern. Grant aid in a given year in a given state is shaped by
many factors, among them the financial need of the students. Hence any estimate of the
association between net tuition and youth residence outcomes would conflate true college cost
effects with effects of the economic conditions of college students’ families. Perhaps in part for
this reason, we find that estimating with net tuition leads, in many though not all cases, to large
and precise estimates of tuition-residence relationships. Net tuition results are available from the
authors.
III. Aggregate trends in young consumers’ residence choices
a. Co-residence with parents: measurement and trends
Each observation in the CCP includes the (anonymized) information in an individual’s
credit report at the end of that quarter (e.g. zip code, birth year, total balances of 10 types of
consumer debt, etc.) as well as the information in the credit reports of all members of that
individual’s household, where households are defined by street address (down to an apartment
number).21 These data lead us to define co-residence (with parents) to be the circumstance in
which a young person (here a 23- or 25-year-old) resides at the same street address as at least one
(Equifax-covered) individual who is between 15 and 45 years her senior, without regard to
household head status or the relationship between the household members.22 Data from the
Center for Disease Control and Prevention’s (CDC) National Vital Statistics System show that,
for the 1978 and 1988 birth cohorts (the early and late ends of our sample), almost all mothers
20 IPEDS covers all 7,255 postsecondary schools in the United States, 5,126 of which provide enrollment and tuition
data, accounting for 97.8 percent of enrollment in the dataset.
21 See Avery et al. (2003) for a detailed discussion of the contents, sources, and quality of credit report data.
22 We exclude household members with empty credit files, as those individuals’ addresses may no longer be
accurately recorded by their creditors, or thereby by Equifax itself.
11
and the vast majority of fathers were between the ages of 15 and 45 at the child’s birth.23
Moreover, we define individuals who live in households of more than 10 people (3.7% of 25-
year-olds and 3.6% of 30-year-olds) as not co-residing, because most situations in which one
would live in such a large household (prison, military, mobile home community) are not such
that the individual is in her parents’ household.24 Note that our definition might overestimate the
aggregate rate of co-residence with parents due to a possible lag between a young person’s
switching his home address and updating his credit report address (as reported by financial
institutions), which might bias the aggregate co-residence rate upwards.25
In order to evaluate the success of our measure of parental co-residence, we use the 2003-
2012 Current Population Surveys to estimate the fraction of individuals who would fall under our
definition of “living with parents” who are actually co-residing with parents (or other older
relatives).26 We find that, in 2010, 92.6 percent of 25-year-olds whom we designate as ‘living
with their parents’ either certainly or most likely co-reside, suggesting that we slightly
overestimate co-residence in our analysis below. First, 84.0 percent live with their parents or
similar elders: most commonly their parents themselves, but also their spouse’s or partner’s
parents, or the parents of a sibling or in-law, their foster parents, their grandparents, or a parent’s
unmarried partner. Another 8.6 percent of 25-year-olds that meet our CCP definition of living
with parents in 2010 most likely co-reside with elder relatives, but the CPS leaves their
designation unclear; they may live with an older sibling, older relatives from outside of the
nuclear family, or with a friend and the friend’s parents. The remaining 7.3 percent of 25-year-
olds in 2010 who meet our CCP criteria for co-residing with parents actually do not co-reside
with parents or elder relatives. 1.8 percent of 25-year-olds who “live with their parents” actually
live with older spouses; other, smaller groups are observed to live at the same address as an
older landlord, an older roommate, or an older roomer. Roughly one percent of cases are either
miscodes or exceedingly complex scenarios.
23 The birth rate for women aged 45-49 in 1978 and 1988 was 0.2 live births per 1000 women. The birth rate for
women aged 10-14 in 1978 (1988) was 1.2 (1.3) per 1000. The birth rate for men aged 45-49 in 1978 (1988) was
larger, at 5.8 (7.1) per 1000. However, this remains quite small relative to the men’s age 25-29 birth rate of 120.0
(111.1) per 1000.
24 We also assume that individuals whose address is listed as a post office box do not co-reside (4% of 25-year-olds,
and 5% of 30-year-olds).
25 Transition model estimates of the probability that independent youth move home in Sections V-VI are less
susceptible to lagged address updating concerns.
26 Our total sample size is 207,928 25-year-olds and 210,711 30-year-olds across the ten years of our analysis. We
use sample weights in order that our analysis is nationally representative.
12
Importantly, our CPS analysis shows that the rate at which we overestimate 25-year-old
co-residence is unchanging over time. The fraction of 25-year-olds that we categorize as “living
with their parents” who co-reside with a parent or elder relative was bounded between 91.6 and
92.6 percent from 2003 to 2012, and we find no evidence of either a linear or quadratic time
trend at the 10% level of significance. This provides evidence that our trend analysis below, in
both the stocks and flows, is unbiased despite slightly overestimating the fraction of young
people who live with their parents (or in similar living arrangements) at any fixed point in time.
Figure 2 depicts the proportion of U.S. 25-year-olds living with “parents” in the CCP
from 2004-2015.2728 For 25-year-old CCP sample members, we observe an increase in the rate of
co-residence with parents or similar elders from 33.5 percent in 2004 to 44.9 percent in 2015.29
Note that this pattern is free of life-cycle effects, as we measure co-residence with parents for the
cross-section of CCP sample members who are 25 years old in each year. This substantial growth
in living with parents is approximately monotonic over the period, and proceeds at a steady pace.
Overall, the rate of co-residence with parents observed in the CCP grows by 11.4 percentage
points for 25-year-olds over our 2004 to 2015 window.
Figure 3 extends these results by examining the increased prevalence of parental co-
residence at the state level.30 We find that parental co-residence among 25-year-olds increased in
all 48 contiguous states in the decade between 2003 and 2013 (though it slightly decreased in
Alaska), with a median increase of 13.8 percentage points. Heterogeneity in parental co-
residence is quite large across states, with state-level co-residence rates for 25-year-olds ranging
from 30 percent to over 50 percent in 2012-2013. States in the center of the country (Rocky
Mountain and Great Plains states) experienced the least growth in parental co-residence, while
27 In the CCP, we observe individuals’ birth years, but not their birth months. The median individual born in a year
turns 25 around July 1st 25 years later. In order to capture the average characteristics of 25-year-olds in a year, then,
we use the observations of those born 25 years earlier from the first quarter of the following year, allowing for a six
month lag in order to measure characteristics, on average, in the middle of the year in which the individual is 25, and
a one-quarter lag from the median time at which those individuals would be 25.5 years old to account for delays in
Equifax data updating, in which loans typically first appear in the data about one quarter later than the origination
date.
28 Importantly, intergenerational co-residence is a viable means of responding to labor or housing market shocks, or
general financial strain, mainly for the subset of families living close enough to each other for the move not to be
exceedingly disruptive. We would prefer to estimate in this population, but are unable to identify parent locations in
families in which youth remain independent. We thank a referee for this observation.
29 From this point we adopt the phrase “living with parents” to describe youth living with parents or with one of the
variety of responsible elders captured by our co-residence measure.
30 This analysis is enabled by the massive size of the CCP data set; our analysis includes at least 166 25-year-olds in
each year-state presented in Figure 3, with a median of 1,282 individuals per state-year.
13
states in the Northeast and West Coast experienced the sharpest increases, some by more than 20
percentage points between 2003 and 2013. Overall, a striking change appears to have occurred
since 2004 in the living arrangements of young consumers.31
Of course, others have documented a large and ongoing change in intergenerational co-
residence in the U.S., either over earlier periods of time or for very recent years and in parallel to
this study. Their findings using long-standing surveys provide us with an opportunity to validate
our measures of intergenerational co-residence in the comparatively novel, entirely
administrative Consumer Credit Panel. Briefly: our estimates of the national rate of
intergenerational co-residence are quite close to rates reported by Matsudaira (2016) using the
2000 Census, and by Paciorek (2014) and by Dettling and Hsu (2014, 2015) using CPS data for
some or all of 2000-2013. In the appendix to this paper, we give a detailed description of the co-
residence rate estimates in Matsudaira, Paciorek, and Dettling and Hsu, and compare them to our
own co-residence trend estimates.
In sum, we observe a steady growth in co-residence with parents among U.S. youth.
While the level of co-residence rates may be sensitive to measurement choices, the levels and
trends we obtain are similar enough to the findings of other recent researchers using alternative
methods and established survey, rather than administrative, sources to suggest that our CCP
measures are informative. All sources and methods discussed in this paper point to two empirical
facts: co-residence with parents was common in 2004, and it is substantially more common
today.
b. Trends in other living arrangements
Given general agreement that young Americans are staying home with parents at an
increasing rate, what living arrangements are they casting aside? Popular speculation suggests
declining rates of first marriage among young people in the wake of the recession. After the
release of the 2009 American Community Survey, Mather and Lavery (2010) noted a recession-
31 This trend could be determined in part by social or demographic phenomena, rather than economic pressures.
However, while the number of Americans aged 45-64 increased by 24 percent from 2002 to 2012 (according to the
U.S. Department of Health and Human Services’ Administration on Aging), the lifetime number of children per
woman remained near two and, if anything, was very slightly increasing from 1970 to 2010 (Population Reference
Bureau 2012). We thank a referee for this observation. It is unclear, then, the extent to which changing
demographics on their own can be expected to generate large changes in the rate of co-residence with parents.
Nevertheless, in the interest of accounting for possible social and demographic changes, we allow for a flexible time
trend as we model the stock of co-residence below.
14
era decline in the share of young people who had ever been married. Shortly after, Wolfers
(2010) countered that this data artifact represented not a meaningful decline in stable
relationships, but an ongoing increase in the age at first marriage in the U.S., coupled with an
increase in cohabitation during the recession, which may have been motivated by a desire to cut
living expenses. One relevant question for the current study, then, may be whether young
Americans are choosing extended adolescence at home with parents in place of independent
adulthood and marriage.
We categorize individuals who are not co-residing with parents into three types. An
individual is defined as living alone if he is the only (Equifax-covered adult) resident at his street
address. We then divide the remaining individuals into those who live with only one other person
and those who live with more than one other person, excluding households with more than 10
people and individuals whose report lists a post office box address.32
Figure 4 shows CCP trends from 2004 to 2015 in the rates at which 25-year-olds appear
alone, with parents, with one adult of similar age, and with two or more adults of similar age.33
The latter category we interpret as living with roommates.
The growth we observe in co-residence with parents appears to come at the cost of fewer
young people living with roommates. We calculate a decline in the rate at which 25-year-olds
live in groups of roommates from 32.5 percent in 2004 to 19.7 percent in 2015. Meanwhile, the
rates of living in couples and living alone are comparatively stable. Hence the evidence in
estimation Table 4, below, will not particularly fall in support of a claim that American youth
prolonging their stays with parents are postponing traditional milestones of adulthood. They
may, however, be giving up independent years of living with groups of friends for the cost-
saving benefit of years at home with parents.
c. Trends in tuition
32 Our CCP data do not allow us to measure the rates at which CCP sample members are marrying before
and after the recession. They do not even allow us to measure cohabiting relationships, whether or not they involve
marriage. What we can do, however, is look at trends in the rate at which young Americans co-reside with one other
adult of a similar age. The benefit of this approach is that it includes marriage along with both opposite sex and
same sex cohabitation, yielding a broader picture of trends in co-residing relationships over the period. The obvious
drawback, however, is that it includes roommate pairs whose relationships are platonic. Our analysis of CPS
household characteristics suggests that residing with one adult of similar age is a reliable predictor of romantic
cohabitation. (These results are available from the authors.) Interpretation of trends in living with a single adult
roommate of comparable age should, however, bear this inclusion in mind.
33 By similar age, we mean 14 or fewer years older, or any amount younger, than the 25-year-old file holder. This
cutoff is chosen to create mutually exclusive and exhaustive living arrangement categories.
15
College costs in the U.S. have been rising steadily for decades. As described previously,
Figure 1 depicts the enrollment-weighted public and private college and university mean tuition
and fees for each state in every year from 2001 to 2013. Each dot represents a state-year. Each
color of dot represents a single state. The figure demonstrates a climb in state tuitions: in our
estimation sample of state-cohort-years, we observe a mean tuition growth of 75.9 percent
between 2004 and 2015, from $8659 to $15,235. Figure 1 further demonstrates a meaningful
expansion in the cross-state dispersion of states’ mean tuitions from early to late in the
estimation window. And, finally, tracking states’ color-coded dots from year to year generates an
understanding of the intermittent nature of jumps in real college tuitions, with the year-to-year
tuition-setting decisions of state boards of regents leading several states to leap-frog each other in
the cross-state tuition ranking each year.
Our empirical approach in Sections V and VI relies on these unpredictable jumps in real
tuition within states for informative variation in the college costs facing individual students.
Further, our approach identifies tuition effects based on within-state dynamics while also
removing the overall positive trend in the national mean of tuition, as well as its nonlinear
movements from year to year. We discuss our identifying assumptions, and states’ tuition-
setting, in more detail in Subsection b of the Appendix.
As a first pass at local analysis of the relationship between college costs and
intergenerational co-residence, Figure 4 presents suggestive evidence of an association between
student debt and parental co-residence in a simple state-level scatter plot that relates the 2008-
2013 change in the rate of parental co-residence among 25-year-olds in a state to its 2008-2013
change in student debt per graduate.34 The regression line in this simple scatter plot reflects a
positive 2.9 percentage point increase in co-residence with a $10,000 increase in student debt per
graduate.
IV. Job market, house price, and tuition effects on intergenerational co-residence from a
theoretical perspective
We rely on Kaplan (2012) for a theoretical description of the dynamic game played
between a parent and child over the choice of separate or shared residence and the child’s labor
34 The chart looks qualitatively similar when constructed from 2003-2013. We isolate the post-recession window as
it is characterized by particularly active changes in states’ public college tuitions.
16
market activities. The child chooses consumption and saving, labor supply (or, where relevant,
job search), and whether to live independently or with his parent. The altruistic parent, in turn,
allocates a fixed income stream among private consumption, public household consumption, and
a financial transfer to her child.
In Kaplan, the manners in which the child benefits from co-residence with the parent are
the following: (i) a child who co-resides with his parent pays no rent or mortgage, and (ii) when
the parent and child co-reside, they each enjoy the public household good. The cost to the child
of co-residence enters as a preference shifter. Hence the benefits of co-residence appear through
the child’s consumption, and decline along with the marginal utility of consumption, while the
cost of co-residence remains fixed as consumption grows. It is this mechanism that generates a
tendency toward independence as the earnings and assets of the child rise.
Comparative statics for co-residence arising from the model for the relationships at issue
in this paper are fairly straightforward. Kaplan describes them as follows on pages 472-473:
“Youths are more likely to live away from home when earnings, assets, or the value of
independence is higher. However, the probability of living away from home is ambiguous with
respect to parental income. On the one hand, higher parental income generates higher parental
transfers and hence a lower earnings/assets threshold for the youth to live away. On the other
hand, higher parental income means higher consumption in the parental home, making living at
home a more attractive option for the youth.” These predictions for the relationship between
child earnings and co-residence with a parent, and between parent income (or assets) and co-
residence with a child, are helpful in interpreting our estimates of the association between local
labor market characteristics and co-residence below.35
Further, as housing costs in the model are paid in any case by the parent but by the child
only in the event that he child lives independently, the model easily predicts that, all else equal, a
35 Kaplan (2012) estimates the relationship between state-level job market conditions and the share of youth living
with their parents in early adulthood. Our empirical analysis may be differentiated from Kaplan’s own (earlier and
influential) estimates for its coverage of youth choices from 2011 to 2015, in addition to the 2000s, and for its
addition of college tuition to the set of factors that may shape co-residence. Further, Kaplan estimates co-residence
transition responses to individual youths’ realized job losses using the NLSY-97, but must cope with the potential
endogeneity of job loss to moving home. Owing to data that are unusual in that they permit panel tracking of the fine
geographic locations of millions of consumers, we are able to estimate the response of co-residence transitions to
arguably exogenous shocks in local labor and housing market conditions. Of course, our analysis lacks Kaplan’s
careful treatment of the insurance role of the option of moving home to parents, and his structural estimation of the
high-frequency residential dynamics of the family as the child weathers positive and negative job market shocks.
17
higher cost of housing may induce the family to co-reside. We relate this prediction to our house
price estimates below.
While the child’s current assets enter the Kaplan model, the model does not address
human capital or past educational investments or costs. One simple way of adapting the
framework for our purposes is to assume that the influence of past college tuition appears in the
child’s current assets and wages. To fix ideas, consider an extension of the model in which,
before entering the labor market, the child makes the simple binary decision to attend and
complete college, at a price equal to the prevailing college tuition, or not to attend college.
Following schooling the child enters the Kaplan model as written. Consider the co-residence
effect of a tuition increase under these assumptions. For an increase small enough that the child’s
college entry choice is unchanged, the effect of the tuition increase on the post schooling
circumstances is simply a reduction in the child’s assets. For a tuition increase large enough to
change the child’s college entry decision, the effect is both an increase in assets, as the child
avoids paying tuition, and any decrease in wages that results from reduced post-schooling human
capital.
What are the predictions of this modified Kaplan model for the relationship between
tuition and the child’s post-schooling decision to live with parents or independently? As written,
the direction of the effect is ambiguous. However, Bleemer et al. (2017) precisely estimate a
small and insignificant response of college enrollment and graduation, and of years of schooling,
to college tuition for a population comparable to the one we study in this paper. If the demand
for college is truly price inelastic, then, in the context of our modified Kaplan model, the effect
of a tuition increase will simply be to decrease the assets of a child who chooses college.
Moreover, the tuition increase will have no effect on a child who does not choose college. Hence
our simplistic modification of the Kaplan (2012) model predicts a negative effect of past college
tuition on present co-residence with parents for youth who attended college, and no effect of past
tuition on co-residence with parents for youth who did not attend college. Guided by this
prediction, we estimate the tuition-co-residence relationship in groups with more and less
exposure to college tuition in Section VI.
V. Empirical model
a. Stock of young people living with parents
18
Next, the fine geographic data and long panel of the CCP allow us to exploit time
variation in local economic conditions and student debt reliance to learn far more about the
contributions of jobs, housing costs, and the cost of college at the local level to the decisive
aggregate trend toward parents, and away from economic independence, that we observe for
recent cohorts of young adults. This section presents three empirical models of parental co-
residence. First, we describe a lagged stock model explaining the co-residence decisions of 23-
and 25-year-olds as a function of local unemployment, youth unemployment, house prices, and
the enrollment-weighted average college tuition that applies to the state-cohort pair in question.
This approach provides an informative description of the times and places in which parental co-
residence is and is not common. Further, heterogeneity analysis allows us to examine the factors
associated with co-residence across the country, and for more and less highly educated, and more
and less urban, areas.
We estimate a state-level model of the share of young residents who are living with parents
as a function of local socioeconomic conditions. In anticipation of the flow model to come, we
consider individuals at two ages, 23 and 25. Define cstY as the share of cohort c, state s, time t
youth who co-reside with parents. We model the share of co-resident youth as a function of the
conditions in the state one year earlier, as well as state fixed effects to control for unobserved
differences in culture and policy that do not vary over time. 36 We thus estimate the simple fixed
effects model:
, (1)
where cstX represents a vector of cohort c, state s, period t characteristics, the levels of which
may influence the residence choices of the youth of state s at t+1. This vector includes state-level
QCEW wages and employment to population ratios, state-level youth unemployment based on
our calculations in the CPS, and state-level CoreLogic home price indices. The vector csZ
represents characteristics of cohort c and state s that do not vary over time, which in this case are
the enrollment-weighted average public and private college and university tuition prevailing in
36 Hence the lagged regressors are observed when the estimation sample youth are 22 and 24.
19
state s when cohort c was between the ages of 20 and 22, as described in Section II above.37
Realized individual educational spending may contain confounding individual (observed and
unobserved) characteristics.38 We address this concern by estimating using a measure of the cost
of college for the state-cohort that is comparatively free of contributions from individual student
ability, diligence, and other factors that shape realized educational attainment. Further, we
include a vector of state fixed effects, denoted s , and time fixed effects, denoted .39
Idiosyncratic error cst is clustered at the state level.
In implementing empirical model (1), we weight each observation by the age-25 population
of the state. Though estimating in state aggregates without the population weight changes some
of the many stock model estimates described below, it is generally true that the qualitative results
are typically similar in weighted and unweighted specifications. Regarding the estimated
coefficients on average tuition, one broad observation we have made in estimating a variety of
weighted and unweighted specifications is the following: Some of the largest tuition swings over
our estimation period belong to the smallest states. This may be one reason that the estimated
tuition coefficients tend to be considerably more pronounced under the unweighted approach.
Throughout Section III, we report population-weighted estimates. Unweighted estimates are
available from the authors.
State-cohort-year average tuition is included in expression (1) as an exogenous measure of
the cost of college for the population whose residential outcome we are estimating. In subsection
b of the appendix to this paper, we describe the identifying assumption we make regarding the
37 The assumption underlying this approach is that the cost of college when a student reaches college age affects
decisions at that point and far into her adulthood. However, the current cost of college in the state is likely to have
little influence on the current residence choices of a 25-year-old who has long since left school.
38 Though we estimate the relationship between college costs and post-schooling co-residence with parents, much of
the relevant literature relates student debt to post-schooling economic circumstances. Gicheva and Thompson (2014)
discuss a student debt endogeneity concern in a related context. Heterogeneity in family generosity tends to bias the
student debt coefficient in a co-residence regression downward, as generous families both impose less student debt
and tolerate more co-residence. Lochner, Stinebrickner, and Sulemanoglu (2013) demonstrate a strong positive
relationship between family support and student debt repayment in recent data on Canada’s student loan system. On
the other hand, individual-level student debt is closely tied to the student’s level of educational investment. Lochner
and Monge-Naranjo (2012) model the relationship between the nature of the schooling investment and the credit
extended to students, with implications for the individual-level association between student debt and post-college
labor market success that are of obvious relevance here.
39 One concern the estimation confronts is the possibility of a non-economic, social trend in the acceptability of
intergenerational co-residence that may, in part, drive the growth in co-residence. However, the 2014 wave of the
Federal Reserve Board of Governors’ Survey of Household Economics and Decision-making (SHED) shows that
the 64 percent of 2014 SHED families living in “doubled-up” households do so primarily for financial reasons. Only
one in seven are doing so, at least in part, for the purpose of caregiving (Board of Governors 2015).
20
exogeneity of state-cohort tuition shocks, and we marshal supporting evidence for this
assumption.
We choose to estimate the stock relationship between local economic conditions and co-
residence choices at a high level of geographic aggregation, the state, for a variety of reasons.
Most important to us is the fact that aggregate analysis minimizes any endogeneity that might
arise from young people’s mobility. If there are systematic economic differences between the
regions where young people live independently and the regions where their parents live, then the
economic characteristics we measure in the young person’s observed location may be
endogenously determined by her co-residence decision. Assume, for example, that housing
prices are higher in parents’ neighborhoods than in children’s neighborhoods, in keeping with
typical life-cycle patterns of consumption in the U.S. Then the problem with the location of
measurement generates a spurious positive relationship between local house prices and living
with parents. By aggregating to the state level, we average across smaller geographic areas (like
zip codes and counties), abstracting away from most mobility concerns.40
b. Flow home to parents from independent living
Nevertheless, one would certainly prefer to exploit the extensive variation in economic
conditions that occurs below the state level in order to generate the most informative picture
possible of youth residence choices. With a detailed panel on the repeated location choices of
millions of early twentysomethings, in this study we are able to push the analysis to a finer
geographic level.
To do so, we model the flows of children into and out of parents’ households. We separate
our baseline sample into youth who live independently in the initial period and youth who live
with parents. This allows us to estimate the effect of more finely measured local economic
conditions on co-residence transitions for samples in which the measure of local conditions is
uniform: we estimate the effect of (changes in) local economic conditions in the parents’ location
on the rate at which dependent youth move out, and, separately, the effect of local economic
40 Most moves to and from parent households occur within a state. According to Molloy et al. (2014), while 19.1
percent of CPS 20-24 year-olds moved between counties over the course of a year, based on pooled data for 2000-
2012, only 3.3 percent of the 20-24 year-olds crossed state lines. Note further that the cross-state move rate declined
over the period. Brown, Grigsby, van der Klaauw, Wen, and Zafar (2015) find that, among CCP individuals
observed at age 18, only 12.82 percent had moved across state lines seven years later. Matsudaira (forthcoming)
employs a similar state-level strategy, presumably owing to similar measurement concerns.
21
conditions in the independent youth location on the rate at which independent youth move home.
This approach also allows us to ask whether the effects of local economic conditions on whether
a child moves away from home differ from the effects of those same conditions on whether a
child moves back home.
This solution is appealing for economic circumstances that evolve over time and are
relevant to youth residence choices in an ongoing manner. It is less helpful for the question of the
relationship between the cost of college and later co-residence with parents for two reasons.
First, for most young consumers, college costs are borne at only one point in the life-cycle.
Tuition increases that develop after a youth leaves school are, by and large, irrelevant to the
student. Second, tuition averages in our data vary primarily at the level of the state-cohort, as
most college students attend public colleges and universities, and public college and university
tuitions tend to move in response to a shared state legislative and budgeting process. Hence the
CCP’s panel dimension, and our transition models, may illuminate the relationship between
(more) local economic conditions and co-residence with parents or independence and yet add
little to our understanding of the relationship between college costs and co-residence. For the
latter, we rely on stock model estimates.
Since we model two-year flows of parental co-residence between the ages of 23 and 25, we
no longer lag the geographic characteristics by a year in identifying their effect on parental co-
residence. Instead, in most instances, we estimate the dependence of the rate of moving home or
away on the change in conditions over the two-year estimation window in the youth’s initial
location. However, college tuition in the youth’s location from age 20 to 22 is a time-fixed
characteristic. Hence we adopt two approaches to the estimation: in one specification, we
estimate models of the dependence of transitions into and out of co-residence on the changes in
local conditions over time, leaving out the time-fixed factor of interest, college cost. In addition,
we report estimates based on an alternative specification, in which we allow co-residence
transitions to depend also on the time-fixed tuition level relevant to the state-cohort, permitting
these characteristics to influence the transition probability through their level at t rather than
through their (null) flow from t to t + 1.41
41 An alternative specification of our model including level measurements of all covariates is available from the
authors. Given that the level of co-residence at time t, and hence the size and nature of the co-residing population, is
shaped by past tuition, the influence of past tuition on co-residence transitions from t to t+1 is unclear. Our Section
22
Consider first the decision to move home to parents. From this point, we estimate
intergenerational co-residence decisions aggregated at the county level.42 Maintaining the
definitions above, we estimate a model of the share of independent youth in county l (for
“location”) who move home between the ages of 23 and 25, 1
H
ltY , in a sample of CCP youth who
lived independently at age 23, which we denote as time t.43
, (2)
Here superscript H denotes factors influencing the probability of moving “home”. Time-varying
local regressors include county-level average wages, employment to population ratio, and
house price index. As mentioned above, we estimate the flow models with and without time-
fixed tuition, . In addition, in these flow equations, our baseline includes a linear national
time trend, which is a constant when differenced. Further, we allow a vector of state-level fixed
effects in the probability of moving home, ( )
H
s l , which may be interpreted as state-level time
trends in co-residence. Importantly, in the flows home, location (county) l is defined as the
child’s location away from home at time t, and all local characteristics at t and t + 1 are
measured for location l.
Finally, though the modified Kaplan model described in Section IV does not predict a time
dependence of co-residence transitions, apart from a response to the evolution of wages,
employment, and housing costs, social developments may shift the level of the preference for co-
residence over time, generating movements in the national flows home or away. Therefore we
estimate under three separate approaches to the dependence of co-residence growth on the
calendar year. First, we estimate under the assumption that 0. This approach adds nothing
IV modified Kaplan model, for example, would generate an ambiguous prediction for the direction of this
relationship.
42 Note that expression (2), below, does not push the data to the individual level. All of the regressors we consider
are measured in local aggregates. While these local aggregates will have substantial predictive power for locally
aggregated cross-sectional co-residence measures and co-residence transitions, without relevant individual-level
exogenous covariates, which for this problem are limited in general and especially limited in the CCP, we have little
hope of identifying which residents of a local area will move. We find that the magnitude and significance of labor
market, housing, and student debt coefficients estimated based on the analogous individual-level co-residence
transition models are very similar to those of the coefficients estimated using aggregate expression (2). The
shortcoming of the individual-level analysis is evident in its modest R-squared values, as we identify the local
moving rate rather reliably, but have little information with which to predict exactly who moves.
43 The elapsed time from t to t + 1 is two years.
23
to the above-mentioned state-level trends in co-residence with parents. Second, we allow a linear
national time trend in the growth in co-residence, so that . Third, we estimate the
model adding a full set of year-specific fixed effects, so that . In this final
specification, in addition to the above state trends, we allow a separate intercept for the rate of
growth of parental co-residence in each year. This last specification might seem to involve
excessive flexibility in the time dependence of the transition path. Though the first and second
approaches are far easier to interpret in the context of the model discussed in Section IV, we
include it in the interest of thoroughness.
c. Flow away from parents to independent living
We estimate a similar model for the share of county youth living with parents who move out
between periods t and t + 1. The expression for the state fixed effects model estimated, using
county-level aggregates is
, (3)
where all arguments are defined analogously to those in expression (2). In this case, all location
characteristics are measured for location l, the parent’s location in period t. Superscript A denotes
factors influencing the probability of moving “away”.44
As in the case of moving in with parents, we estimate expression (3) first including only the
growth regressors, as well as the specified state and time effects. We then report estimates that
add time-fixed tuition averages relevant to the state-cohort youth while college aged. In doing so,
we note that the predictions of the modified Kaplan model discussed in Section IV for the
direction of the relationship between college costs and the rate of moving away from parents
among the resulting group of co-resident youth some years after college are ambiguous. As in the
transition home case above, we estimate the transition to independence model using three
specifications of time dependence. We estimate first assuming 0, then ,
and, finally, .
Standard endogeneity concerns deriving from observable and unobservable individual and
local characteristics that are fixed over the two-year window are accounted for by the transition
approach we take to estimation. Obvious examples include child ability, parent generosity, and
44 Owing to the unobservability of locations not chosen, what we will not be able to explore is the dependence of the
youth’s decision to move home on the characteristics of the parent’s location, and the dependence of the youth’s
decision to move out on the characteristics of the youth’s preferred independent location.
24
persistent regional characteristics. Some remaining endogeneity concerns arise from the
association between youth mobility and local house price and employment aggregates. By and
large, they work against the main results described below. They are discussed in the appendix.
V. Results
a. Stock of young people living with parents
Table 2 reports the coefficient estimates for the stock parental co-residence model in
expression (1) for 23- and 25-year-olds. Our baseline specification is shown in column (1),
which includes each of the covariates listed in section Va as well as state dummies to control for
unobserved permanent cross-state differences in culture and policy and year dummies to account
for time-varying aggregate conditions, such as credit market conditions.45 We find, as expected,
that geographic areas with higher average wages are characterized by substantially lower rates of
intergenerational co-residence: a $100 greater mean weekly wage observed for the state and year
in question is associated with a 2.1 percentage point decline in the share of 23- and 25-year-olds
living with parents, and this coefficient is significant at the one percent level.46 Despite this
substantial wage result, we estimate little association between either the overall employment to
population share or the youth unemployment rate and the rate of co-residence in the state for the
year. A once percentage point increase in employment is associated with a 0.03 percentage point
decline in co-residence, and a one percentage point increase in youth unemployment is
associated with a 0.06 percentage point increase in co-residence. The direction of each
coefficient estimate matches our expectations, but neither is significant or of economically
relevant magnitude. In sum, the job market results for the full population of state-years indicate
that co-residence is particularly prevalent in lower-earning regions, and yet not closely tied to
employment rates.
At the same time, we find a modest negative association between house prices and co-
residence. The coefficient on CoreLogic house price index is -0.013, and is significant at the ten
percent level. This indicates that a one standard deviation difference in house price index for the
pooled 2003-2015 sample of states is associated with a 0.53 percentage point lower rate of co-
residence with parents among 23- and 25-year-olds. One might consider this a precisely
45 We thank a referee for the observation that credit access common across states varies widely over this period and
may affect co-residence choices.
46 The association between national trends in intergenerational co-residence and poverty is described by Duca
(2013).
25
estimated very small association between house price and co-residence. Though the Section IV
model implies a positive association between housing cost and co-residence, this relies on a
measure of housing cost that sets aside family wealth. In our application, the regional house price
indices bring information both about housing costs in the region and about family wealth,
conditional on the region’s wages. Where high housing costs are predicted to encourage co-
residence, high wealth may help families support separate residences. This prediction is
reinforced empirically by our finding that co-residence is associated so closely with lower
earning power. On net, the two competing forces embodied in house prices appear to generate a
near-zero association between the house price index and the prevalence of intergenerational co-
residence, at least in the cross section.
Finally, we estimate a positive, moderate, and insignificant association between
enrollment-weighted mean tuition and co-residence for the full sample of states and years. A
$1000 increase in mean tuition is associated with a 0.14 percentage point increase in co-
residence, and this estimate has a t-statistic of less than one. In the full sample, college tuition
does not appear to be a strong determinant of co-residence for young consumers.
The parameters arising from year controls show the surprising strength of the time
dependence of co-residence with parents. The coefficients on our set of year effects reveal a
steep time path, even when conditioning on state labor and housing market conditions. The 2015
observations, for example, average 21 percentage points more co-residence than the 2003-2004
observations, all else equal.
Given a mean of 34.1 and standard deviation of 13.3 for our measure of the rate of
college graduation by age 24 among the sample state-cohort cells, our data signal substantial
variation in the relevance of college tuition across state-cohort populations. Therefore we are
also interested in differences in the relationship between the cost of college and later co-
residence with parents for regions with more and fewer college-going youth. To investigate
regional heterogeneity by educational attainment, we divide the sample of states into an upper
and a lower half, and eventually quartiles, based on the share of current 24-year-olds with
associate’s or bachelor’s degrees. Our choice of graduation rate as the educational criterion used
to group the states arose in part from the stability of graduation rates over the sample period.
While college enrollment rates for students of traditional college ages rose meaningfully between
26
2003 and 2015, the age-24 graduation rates we derive from IPEDS and Census measures are
approximately flat and close to a third throughout the period.47
Dividing the sample by college graduation rate reveals distinct patterns in higher- and
lower-graduation states. Columns (2) and (3) report estimates for the lower and the upper halves
of states in terms of age-24 graduation rate. For lower graduation rate states, we see a small and
insignificant negative association between state-cohort tuition and the age 23 and 25 rate of co-
residence with parents. The higher graduation rate states, however, behave differently. There we
see a positive and significant association between state-cohort tuition and co-residence, with a
state-cohort facing a $1000 higher mean tuition level realizing a 0.72 percentage point higher
rate of co-residence by ages 23 and 25, on average. Given a rise in mean tuition from 2003 to
2015 of roughly $6202 for this group, the estimate implies that tuition may explain as much as
4.5 percentage points of the roughly 10.5 percentage point rise in co-residence observed for high
graduation states over this period. The fact that the association between co-residence and tuition
appears specifically for highly educated states suggests that this relationship may be driven by
college costs themselves, and not by some additional local factor shaping both college budgets
and subsequent youth residence choices.
The co-residence pattern is quite different for lower education states. In addition to no
clear association between tuition and co-residence, in states with graduation rates in the bottom
half of the distribution, we see a meaningful association between employment and co-residence.
While the estimated association between the state-year’s QCEW employment to population ratio
and intergenerational co-residence is negative and insignificant for both the pooled sample and
the higher graduation states, the lower graduations states show a positive, large, and highly
significant relationship between employment and co-residence. Among lower education states, a
one percentage point higher employed share of the population is associated with a 0.16
percentage point higher rate of co-residence with parents at ages 23 and 25. This coefficient is
significant at the one percent level.48
47 Hence our heterogeneity analysis is insensitive to dividing states according to the graduation rate of current 24-
year-olds or of 24-year-olds from a fixed, pre-sample year. Note that the climbing enrollments and relatively
stagnant graduation rates we observe are symptomatic of a concern shared by higher education researchers. See, for
example, Athreya and Eberly (2013) and Looney and Yannelis (2015).
48 This association is consistent with positive social interaction effects with employed parents who may be better
able to help their children with residence, finding jobs, and other needs.
27
In sum, while intergenerational co-residence for higher education states is closely tied to
college costs, for lower education states we see co-residence instead associated meaningfully
with state employment. This pattern persists in finer graduation rate categories: when we
estimate in quartiles of state graduation rates, reported in columns (4) through (7), we find a
negative, insignificant coefficient on tuition for the lowest quartile, followed by positive and
economically meaningful coefficients on tuition for the upper three quartiles, with the largest
coefficient appearing for the highest graduation rate quartile. Here we find a $1000 increase in
mean tuition associated with a 0.94 percentage point increase in co-residence, and this estimate is
significant at the five percent level. Turning to employment, however, we find a positive
association between employment and co-residence for the lower two quartiles of states in terms
of graduation rates, with a significant coefficient of 0.327 on employment for the second quartile
indicating a 0.327 percentage point increase in co-residence associated with one percentage point
more employment there. And yet, in the fourth quartile, we see a negative and marginally
significant coefficient on employment. Our heterogeneity analysis reveals distinct co-residence
reactions to college costs and employment conditions for more and less educated regions.
Turning to the fixed effect coefficients, this division of the sample into higher and lower
education regions also reveals interesting differences in the time pattern of intergenerational co-
residence. While the year dummy coefficients climb from 4.506 in 2005 to 27.965 for the first
quartile of states by graduation rate, they reach only 1.449 by 2005 and 9.487 by 2015 for the
fourth graduation rate quartile.49 By and large, we see a substantially steeper upward trend in co-
residence for lower education states, and one closely associated with job market conditions. At
the same time, we see a lesser but still quite substantial upward trend in co-residence for higher
education states, and one more closely associated with the cost of college.
b. Stock model estimates of other residence choices
Given the steady climb in intergenerational co-residence that we have measured and estimated
above, what residential arrangements are younger Americans now forsaking, and why? Next we
estimate empirical specifications equivalent to those described by expression (1), but we replace
the outcome of the share of youth co-residing with parents with three alternative residential
49 Each of the first quartile coefficients is significant at the one percent level. The fourth quartile coefficients are
significant at the ten and five percent levels, respectively.
28
arrangements. The additional arrangements we model are the share of youth living with groups
of roommates, in couples, and the share living alone. These four categories – living with parents,
with groups of similarly-aged roommates, in a couple, or alone – are defined to be exhaustive.
Each observation in our sample can be categorized as one of the four. The measurement of each
living arrangement follows the definitions laid out in Section III on youth residence trends. We
report estimates of our models of other living arrangements in Table 3.
As intergenerational co-residence rates ascend from 2003 to 2015, the estimated year
effects in Table 3 reveal an offsetting decline in the rate of living with roommates. This is
particularly true for lower education states. The rate of living in couples is estimated to be
comparatively flat, though this masks a steep increase for lower-education states. Finally, in the
pooled sample and in high and low graduation groups, we observe a modest decline in the rate of
living alone.
Turning to college costs, the higher education states that showed a large positive
association between tuition and intergenerational co-residence also show an approximately
offsetting decline in living with groups of roommates as tuition rises. A $1000 increase in tuition
is associated with a 0.72 percentage point decline in co-residence with parents and a 0.86
percentage point decline in living with roommates.50 This same group shows little association
between tuition and living either in couples or alone. Our evidence suggests that young
Americans living in higher education states responded to the tuition increases that characterized
the 2003-2015 era by increasingly living with parents at the cost of living independently with
roommates.
The picture for lower education states appears to be quite different. Though these states
have lower graduation rates, college enrollment is quite common in all states, and we expect
substantial exposure to college costs for both groups. In the lower education states, our estimates
indicate no significant or substantial response to tuition in the rates of living with parents, with
roommates, or alone, but we do find a negative association between tuition and living in couples.
Specifically, $1000 increase in tuition is associated with a 0.28 percentage point decrease in the
rate of living in couples.
The employment effects on other residential arrangements that we estimate are mixed
and, for the most part, small. Wages show little effect on residential arrangements, aside from a
50 This coefficient is significant at the five percent level.
29
large positive association with living with roommates, particularly for lower education areas.
House prices show a modest positive and significant association with living in a couple; a one
standard deviation increase in the state-year house price index is associated with a 0.45
percentage point increase in coupledom, and this is true for both high and low education states.
c. Geographic heterogeneity in the response to tuition
One finds extensive variation across the United States in both population density and the
prevalence of intergenerational co-residence, whether in 2003 or 2015. Further, these correlate
with graduation rates. For example, the western states feature both lower graduation rates and
lower rates of intergenerational co-residence. It is useful, therefore, to examine the geographic
sources of our estimated tuition-co-residence relationship.51
First, we estimate our baseline model, as described by expression (1) and reported in
Table 2, interacting the tuition regressor with indicators for each of the four U.S. Census regions.
Though sample size begins to limit the precision of the estimates in finer categories, we also
perform this exercise separately for higher and lower graduation rate states. Table 4 reports the
estimates with region-specific tuition estimates for the full sample and top and bottom halves of
the graduation rate distribution. In the pooled data, we estimate no significant or sizable tuition
effects on co-residence in any of the four Census regions. Separating the tuition effect across the
four Census regions demonstrates that the tuition association with intergenerational co-residence
that we observe for the higher graduation rate sample arises from a positive relationship in the
Northeast and Midwest, and, to a degree, in the South Atlantic. (The precision of some of these
estimates, however, is reduced by the smaller sample sizes of the graduation rate by Census
region subcategories.) In particular, we observe a coefficient indicating that a $1000 increase in
tuition is associated with a 0.66 percentage point increase in intergenerational co-residence in the
Northeast.52
However, the relationship of co-residence to tuition appears to be quite different in the
West. In the West for both the low and high graduation rate states we estimate a negative, and in
one case substantial (though statistically insignificant), association between tuition and
intergenerational co-residence.
51 We thank a referee and the editor for this observation.
52 This coefficient is significant at the ten percent level.
30
Given the differing availability of living space in urban and rural environments, as well
as the difference in educational attainment in the two, we are also interested in whether the
estimated tuition-co-residence relationship arises in urban or rural locations. Table 5 reports
estimates of expression (1) with the addition of a regressor representing the percent of each state
living in urban areas, along with the interaction of the percent urban and the mean tuition for the
state.
The estimates indicate that intergenerational co-residence is considerably less common as
the population becomes more urban. (Note, of course, that the effects of time-fixed heterogeneity
are absorbed by the full set of state fixed effects.) At the average tuition level for the sample, the
point estimates in Table 5 column (1) indicate that a one percentage point increase in the share of
the state population living in urban areas decreases intergenerational co-residence by roughly
1.16 percentage points. Further, the estimates reflect a more positive association between tuition
and intergenerational co-residence in more urban states. In the pooled sample of state-years, and
evaluating at the US overall percent of urban population for 2010 of 80.7 percent, the estimates
indicate that a $1000 increase in tuition is associated with a small 0.045 percentage point decline
in intergenerational co-residence. However, in California, the state with the highest urban
population percentage, at 95 percent, a $1000 increase in tuition is associated with a 0.24
percentage point increase in intergenerational co-residence. This relationship arises from a
positive and highly significant coefficient on the interaction between percent urban and tuition.
The Table 5 estimates suggest that the positive tuition-co-residence estimate we observe
elsewhere is a more urban than rural phenomenon. Moreover, the column (2) and (3) estimates
reflect the now-familiar difference between the tuition-co-residence relationship in the lower and
higher graduation rate states. The estimates in column (3) produce a 0.59 percentage point
increase in co-residence with a $1000 increase in tuition when evaluated at the US average
percent urban of 80.7, or a 0.74 percentage point co-residence increase with $1000 higher mean
tuition for a state with the urban percentage of California.
Overall, the evidence we have gathered on the geographic heterogeneity in the tuition-co-
residence relationship reveals that the positive association between tuition and intergenerational
co-residence that we find for higher education states is driven by the strength of this relationship
in the Northeast and the Midwest, or, not unrelatedly, the strength of this relationship in states
31
with more urban populations. The tuition-co-residence connection is much weaker, and is even
estimated to be negative in some cases, in the Western states and in more rural areas.
d. Flow home to parents from independent living
Table 6 reports the coefficient estimates for the moving home model in expression (2).53 As
discussed above, we move to the transition approach in order to estimate parental co-residence
choices in two populations, one in which youth uniformly live on their own at the start of the
two-year period, and one in which youth uniformly live with parents. In doing so, we are using
the panel dimension of our data to resolve the problem of measuring location characteristics only
for youth locations when sample members live independently, and only for parent locations
when sample youth live with parents. This method is appealing in that it allows us to identify the
effects of local conditions operating below the state level on the choice of whether to co-reside
with parents. It is less effective, however, in relating college costs to co-residence, as college
costs do not vary over the life-cycle, and the bulk of their variation in our IPEDS-derived
measures occurs at the state level. However, to the extent that having experienced higher costs of
college potentiates co-residence reactions to unobserved shocks, such as individual job loss or
partnership dissolution, as might arise in the modified Kaplan model in Section IV, we may be
able to capture this effect by estimating the growth model with the addition of a state-cohort
tuition level.
The estimation sample consists of county-level observations of two-year changes in
employment, wage, and housing price conditions, as well as the share of 23-year-olds living
independently who have moved home to parents two years later. The full sample period is 2003-
2015, with the first set of 23-year-olds observed living independently in 2003 and the last two-
year transition window closing for 25-year-olds in 2015. Columns (1), (3), and (5) reflect
estimates of the model exclusively relating the growth in employment, wages, and housing costs
to transitions home. Columns (2), (4), and (6) add the level of the age 20-22 enrollment-weighted
state tuition mean faced by the state-cohort to what is otherwise a growth model. This latter
modification is not ideal, and our preferred specification is the simple growth model. However,
the reader may wonder about the role of college costs in shaping co-residence transitions.
Finally, note that columns (1) and (2) include state fixed effects in the rate of transition to parents
53 For the relevant scales of measurement, as well as average values of the flow variables, see Table 1.
32
but no time dependence in co-residence changes, columns (3) and (4) add a linear time trend to
this model of changes in co-residence, and columns (5) and (6) allow a full set of year-specific
effects in the rate of change in co-residence, arguably an extreme approach to the specification of
time dependence in a model of growth.
Estimates in Table 6 most prominently describe a protective effect of strengthening local
labor markets on the independence of youth. Across all specifications, a one percentage point
increase in local employment is associated with a 0.2 to 0.3 percentage point decline in the rate
at which youth move home to parents over the two years. The employment share coefficient is
significant at the one percent level in all cases. Increasing local wages behave similarly. A $100
increase in average weekly wages for the county over two years is associated with a 0.12 to 0.15
percentage point decline in the rate of moving home to parents, and these estimates are also each
significant at the one percent level. Strengthening local labor markets, reflected in both rising
employment rates and rising wages, stabilize youth independence.54
Increasing house prices, also often associated with strengthening local economies, appear to
have the opposite effect. Specifications (1) through (4) reflect a positive association between
house price growth and the rate at which independent youth move home, with a one standard
deviation larger growth in the house price index associated with a 1.21 to 1.92 percentage point
greater rate of transition home to parents; again each coefficient estimate is significant at the one
percent level. The direction and magnitude of these estimates stand to reason: as the cost of
housing in the county increases, families respond with a fair amount more “doubling up”. It must
be noted, however, that the result is not robust to our most flexible specification of the dynamics
of co-residence transitions.
Turning last to college costs, our transition model estimates uncover a positive association
between the tuition faced by a state-cohort and its later rate of transition home (among those who
first achieve independent living) only in the column (2) specification, which permits no time
dependence in the rate of transition home between ages 23 and 25. The estimate indicates a 1.26
percentage point increase in the two-year rate of transition home for a cohort that faced $1000
greater mean college tuition. Given the state fixed effects in this framework, the effect of state-
cohort tuition on transitions back to the parents’ home is identified using variation between
54 These decisive results are consistent with the findings in Kaplan (2012) that the job market exerts its greatest
influence on the timing of moves home.
33
cohorts in a given state in college costs, and hence accounts for state-specific levels and linear
trends in the influence of the degree of support for youth and education on the two-year
transitions.
Yet adding linear or fully flexible year controls leaves a negative and insignificant tuition
coefficient for the rate of moving home. Of course, the cost of college in part shapes the
population living independently by age 23, and so, recalling the Section IV modified Kaplan
model, theory generates an ambiguous prediction for association between college costs and the
rate of return for post-schooling youth who have achieved independence. For this and other
reasons described above, the tuition coefficient is only limitedly informative.
e. Flow away from parents to independent living
Table 7 reports the coefficient estimates for the model of the rate at which dependent youth
move away from home. Analogous to the Table 6 move-in estimates, the sample consists of
county-level two-year changes in employment, mean wages, and house price indices. These are
related to the rate at which 23-year-old county residents living with parents move out over the
subsequent two years. As before, columns (1), (3), and (5) estimate using only growth regressors
and columns (2), (4), and (6) add the levels of the relevant state-cohort tuition means, which
precede the estimation window. And as before, columns (1) and (2) impose no time dependence
beyond state fixed effects in the transition rates, columns (3) and (4) include a linear time trend
in the rate of change in co-residence, and columns (5) and (6) include free yearly effects in the
rate of residence changes.
By and large, the economic determinants of moving away from parents are less obvious
based on the estimates than the economic determinants of moving home. We find no significant
association between county employment growth and the rate of moving out. The estimates show
a small, positive and in some cases marginally significant relationship between house prices and
the rate at which youth move away from their parents, and yet a negative, smaller, and
insignificant association once one moves to the most flexible specification of time dependence.
The wage coefficients, however, are decisive. A $100 increase in the county’s mean weekly
wage over two years is associated with approximately a 0.4 percentage point decline in the rate
at which county youth move away from their parents.55 Weighing the wage coefficients for both
55 The wage coefficient is significant at the one percent level in all cases.
34
the move in and the move out, it appears both that local wage growth in the youth location
stabilizes youth independence and that local wage growth in the parent location stabilizes co-
residence with parents.
As in the model of transitions home, transitions away are closely associated with higher
state-cohort college costs only where the model omits a time trend in co-residence transitions. In
column (2), we estimate a 1.5 percentage point decline in the rate of transitions away from
parents in response to a $1000 greater state-cohort college tuition level. However, adding either a
linear or fully flexible time dependence of the rate of residence changes leaves a smaller positive
and insignificant tuition coefficient. As with the rate of moving home, the population of youth
co-residing with parents by the age of 23 is shaped in part by college costs, and college costs
affect a cohort of youth at one point over the life-cycle. As a result, the predictions of our Section
IV model for the direction of the association between past tuition and subsequent co-residence
transitions are ambiguous. Moreover, it is not clear that our approach could be expected to have
enough identifying power under such an extremely flexible model of time effects on
intergenerational co-residence to estimate this direction informatively.
VI. Discussion and Conclusions
This paper investigates young people’s parental co-residence rates in the CCP, and the
relationship among co-residence decisions and local house prices, local employment conditions,
and the cost of college. Evidence from the CCP shows that co-residence with parents has been
persistently increasing for 25-year-olds since 2004, while the number of 25-year-olds living with
more than one roommate has declined steadily. The co-residence trend corroborates similar
findings using the Census, CPS and CCP in Matsudaira (2016), Paciorek (2014), and Dettling
and Hsu (2014). Simultaneously, homeownership has decreased for both age groups, and college
tuitions have continued to grow.
In a pooled sample of state-cohort-year cells measuring the mean rate of co-residence
with parents among youth at ages 23 and 25, we find that co-residence arises most in the
presence of low or declining wages. Accounting for time-fixed heterogeneity in intergenerational
co-residence across states, as well as freely varying yearly shifts in overall co-residence, we find
that when states face average weekly wages that are $100 lower, their rate of intergenerational
35
co-residence is, on average, 2.2 percentage points greater. High rates of living with parents
appear to be associated with periods of weaker earnings in the region.
By splitting our sample of state-cohort-year cells into those characterized by higher and
lower college graduation rates, we uncover some interesting distinctions between the recent
growth in intergenerational co-residence for states whose populations have higher and lower
educational attainment. Among states with more educated populations, youth cohorts’ rates of
co-residence with parents following schooling are particularly responsive to changes in the
college tuition that students confronted when they were of college age. Presumably this is also,
in part, as a greater share the population is affected by higher tuition. Among the more highly
educated half of states, a $1000 increase in the tuition facing a state-cohort is associated with a
0.72 percentage point higher rate of co-residence with parents. The analogous co-residence
increase for the top quartile of states, in terms of graduation rate, is 0.94 percentage points.
Hence for the higher graduation rate half of states, the observed $6202 tuition climb over the
period is able to account for 4.5 of the observed 10.5 percentage point rise in co-residence with
parents. The influences on intergenerational co-residence of more conventional economic
factors, such as jobs and housing, for the more highly educated states are estimated to be
comparatively modest.
Among lower graduation rate states, the picture is quite different. We find no clear
response of co-residence with parents to college tuition movements from cohort to cohort, and
decisive evidence of a response to job market conditions. States with lower educational
attainment, then, make co-residence choices that appear to be closer to the jobs-based model of
residential independence of Kaplan (2012), for example. For the lower graduation rate states, we
estimate a 3.9 percentage point greater rate of co-residence with parents, on average, in times
when mean weekly wages in the state are $100 lower. In addition, the residual year effects in our
tuition model, after controlling for time-varying state economic conditions and time-fixed state
factors, increase far more steeply from 2003 to 2015 for the half of states with lower educational
attainment. While our estimates indicate a 13 percentage point secular increase in
intergenerational co-residence for the high graduation rate half of states (controlling for
economic conditions and college costs), the analogous increase for the lower graduation rate half
of states is 25 percentage points.
36
Analysis of the geographic heterogeneity in tuition effects on co-residence reveals that
the tuition and co-residence association we observe for the higher college graduation rate states
arises primarily in the Northeast and Midwest, or, relatedly, among states with a higher
percentage of population living in urban areas. All estimates in the paper point in the direction of
a tighter positive association between tuition and co-residence in regions of the U.S. where youth
are more likely to enroll in, or graduate from, college. In addition, while the states of the West
have also experienced a pronounced secular climb in intergenerational co-residence, the
description of a young worker lingering longer with parents in response to a large positive shock
in the cost of college turns out to be a particularly poor fit for the intergenerational co-residence
patterns that we observe in the West.
Estimates of other residential choices demonstrate that the move home to parents in
response to climbing tuition among youth in higher graduation rate states comes at the expense
of living with roommates, and not at the expense of coupledom. On the other hand, we observe a
significant and fairly substantial negative association between tuition and later residence in
couples for lower graduation rate states. Further, the rate at which area youth choose to live alone
is estimated to be surprisingly unresponsive to college costs, jobs, or housing markets.
Transition models allow us to relate developments in local economic conditions below
the state level to the decisions of young consumers to live with parents or independently. Our
estimates provide decisive evidence for the role of strengthening labor markets, in terms of both
wage growth and increasing employment rates, in reinforcing the independence of youth. Young
consumers living independently in improving local labor markets are substantially less likely to
move home. The protective effect of improving local labor markets may be weakened somewhat
by strengthening local housing markets, as rising house prices are estimated to increase the rate
at which youth move home to parents.56 Economic explanations for the rate at which youth move
away from parents between ages 23 and 25, however, find considerably less traction. Our only
clear insight regarding the economic determinants of the move out is that increasing local wages
stabilize living arrangements of both kinds, with fewer youth moving away when wages increase
in parent locations, and fewer youth moving home when wages increase in youth locations.
56 This latter result, however, is sensitive to specifications allowing extremely flexible time patterns in the rate of
residence changes.
37
To paint with a broad brush, our estimates of the relationship among intergenerational co-
residence choices and the economic conditions under which they are made describe two distinct
regional circumstances. In the first, many young students are exposed to college costs, and jumps
in the tuition facing a college cohort are met with extended periods of co-residence with parents,
or more moving “home” in early adulthood. In the second, fewer students confront college
tuition, and local job market conditions, with particular emphasis on wages, are paramount in
shaping the decision whether to live with parents or independently. Both types of regions,
nevertheless, are characterized by a steep secular climb between 2003 and 2015 in the rate of
intergenerational co-residence, one that operates over and above any pressure to co-reside arising
from weakening local labor markets or rising costs of housing and college.
Finally, it is important to qualify our estimates relating local tuition to population
averages of youth residential outcomes. Cross-sectional and transition estimates of parental co-
residence patterns that rely on local aggregates may be useful in addressing the specific
estimation challenges described by this paper, including both the confounding link between the
measurement of local conditions and whether youth have chosen to live with parents, and any
underlying heterogeneity in individual youth ability and family generosity. However, working
with aggregates implies that all statements made based on the estimates reported in this paper
describe local average levels and changes in the tuition cost of a degree. Higher education
investments, and their returns, may be quite heterogeneous, as described by Avery and Turner
(2012). While these results represent the association between the average cost of higher
education in a location and the rate of remaining or returning home, they may, for example,
reflect a mix of strong homeward pressure in response to low-return educational investments and
a pressure toward independence in response to high-return investments.
38
References
Agarwal, S., L. Hu, & X. Huang. 2013. Rushing into American Dream? House Prices, Timing of
Homeownership, and Adjustment of Consumer Credit. Federal Reserve Bank of Chicago Working Paper
2013-13.
Athreya, Kartik and Janice Eberly. 2013. “The supply of college-educated workers: the roles of
college premia, college costs, and risk,” Federal Reserve Bank of Richmond working paper,
http://www.richmondfed.org/publications/research/working_papers/2013/pdf/wp13-02 .
Autor, D., D. Dorn, and G. Hanson. 2013. The China Syndrome: Local Labor Market Effects of Import
Competition in the United States. American Economic Review 103(6): 2121-2168.
Avery, R., P. Calem, & G. Canner. 2003. An Overview of Consumer Data and Credit Reporting. Federal
Reserve Bulletin 01/2003.
Avery, C. and S. Turner. 2012. Student Loans: Do College Students Borrow Too Much–Or Not Enough?
Journal of Economic Perspectives, 26(1): 165–92.
Barr, A. and S. Turner. 2015. Out of Work nad Into School: Labor Market Policies and College
Enrollment During the Great Recession. Journal of Public Economics 124: 63-73.
Becker, S.O., S. Bentolila, A. Fernandes, & A. Ichino. 2010. Youth emancipation and perceived job
insecurity of parents and children. Journal of Population Economics 23: 1175-1199.
Bleemer, Z., M. Brown, D. Lee, K. Strair, & W. van der Klaauw. Echoes of Rising Tuition in Students’
Borrowing, Educational Attainment, and Homeownership in Post-Recession America. Manuscript.
Board of Governors of the Federal Reserve System. 2015. Report on the Economic Well-Being of U.S.
Households in 2014.
Brown, M., J. Scholz, & A. Seshadri. 2012. A New Test of Borrowing Constraints for Education. Review
of Economic Studies 79(2): 511-538.
Brown, M. & S. Caldwell. 2013. Young Student Loan Borrowers Retreat from Housing and Auto
Markets. Federal Reserve Bank of New York Liberty Street Economics Blog.
Brown, M., S. Caldwell, & S. Sutherland. 2014. Just Released: Young Student Loan Borrowers Remained
on the Sidelines of the Housing Market in 2013. Federal Reserve Bank of New York Liberty Street
Economics Blog.
Brown, M., J. Grigsby, W. van der Klaauw, J. Wen, and B. Zafar. 2014. Financial Education and the Debt
Behavior of the Young. Federal Reserve Bank of New York Staff Reports 634.
Brown, M., A. Haughwout, D. Lee, J. Scally, & W. van der Klaauw. 2015a. The Student Loan Landscape.
Federal Reserve Bank of New York Liberty Street Economics Blog.
39
Brown, M., A. Haughwout, D. Lee, & W. van der Klaauw. 2015b. Do We Know What We Owe? A
Comparison of Borrower- and Lender-Reported Consumer Debt. Federal Reserve Bank of New York
Economic Policy Review.
Card, D. & T. Lemieux. 2000. Adapting to Circumstances: The Evolution of Work, School, and Living
Arrangements among North American Youth. In Youth Employment and Joblessness in Advanced
Countries, ed. Blanchflower and Freeman. Chicago: University of Chicago Press.
Cooper, D. & J.C. Wang. 2014. Student Loan Debt and Economic Outcomes. Federal Reserve Bank of
Boston Current Policy Perspectives 14-7.
Consumer Financial Protection Bureau (CFPB). 2013. Student Loan Affordability: Analysis of Public
Input on Impact and Solutions. Washington, DC.
Dettling, L. & J. Hsu. 2014. Returning to the Nest: Debt and Parental Co-Residence Among Young
Adults. Federal Reserve Board Finance and Economics Discussion Series 2014-80.
Dettling, L. & J. Hsu. 2015. Why Boomerang? Debt, Access to Credit, and Parental Co-residence among
Young Adults. FEDS Notes, https://www.federalreserve.gov/econresdata/notes/feds-notes/2015/why-
boomerang-debt-access-to-credit-and-parental-co-residence-among-young-adults-20151001.html
Duca, J. 2014. When will the Kids Ever Move Out? Manuscript.
Dustmann, Christian. 2003. Return migration and the optimal migration duration. European Economic
Review 47, 353–67.
Dyrda, S., G. Kaplan, & J. Ríos-Rull. 2012. Business Cycles and Household Formation: The Micro vs the
Macro Labor Elasticity. NBER Working Paper 17880.
Ermisch, J. 1999. Prices, Parents, and Young People’s Household Formation. Journal of Urban
Economics 45: 47-71.
Federal Reserve Bank of New York (FRBNY). 2014. Quarterly Report on Household Debt and Credit,
February 2014. New York.
Gicheva, D. & J. Thompson. 2014. The Effects of Student Loans on Long-Term Household Financial
Stability. University of North Carolina at Greensboro Department of Economics Working Papers 14-02.
Goldscheider, F. K. & J. DaVanzo. 1985. Living Arrangements and the Transition to Adulthood.
Demography 22(4): 545-563.
Goldscheider, F. K. & J. DaVanzo. 1989. Pathways to Independent Living in Early Adulthood: Marriage,
Semiautonomy, and Premarital Residential Independence. Demography 26(4): 597-614.
Haurin, D., P. H. Hendershott, & D. Kim. 1993. The Impact of Real Rents and Wages on Household
Formation. The Review of Economics and Statistics 75(2): 284-293.
Hershbein, B & K. Hollenbeck. 2014. The Distribution of College Graduate Debt, 1990 to 2008: A
Decomposition Approach. Upjohn Institute Working Papers 14-204.
40
Houle, J. & L. Berger. 2014. Is Student Loan Debt Discouraging Home Buying Among Young Adults?.
Association for Public Policy and Management. Manuscript.
Hunt, J. 2004. Are migrants more skilled than non-migrants? Repeat, return, and same-employer
migrants. Canadian Journal of Economics/Revue canadienne d’économique, 37: 830–849.
Jacob, K., & R. Schneider. 2006. Market Interest in Alternative Data Sources and Credit Scoring. Center
for Financial Services Innovation Articles 2817.
Kaplan, Greg. 2012. Moving Back Home: Insurance Against Labor Market Risk. Journal of Political
Economy 120(3).
Klasen, S. & I. Woolard. 2008. Surviving Unemployment without State Support: Unemployment and
Household Formation in South Africa. Journal of African Economies 18(1): 1-51.
Kurz, C. & G. Li. 2015. How Does Student Loan Debt Affect Light Vehicle Purchases?. FEDS Notes,
February 2, 2015.
Lautz, J. 2011, March 7. Median Age of Home Buyers: 2001-2010. National Association of Realtors
Economists’ Outlook Blog.
Lawrence Journal-World. 2013. Republican budget writerspropose 4 percent across-the-board cut to
higher education. http://www2.ljworld.com/news/2013/mar/12/republican-budget-writers-propose-4-
percent-across/?print
Lee, D. & W. van der Klaaw. 2010. An Introduction to the FRBNY Consumer Credit Panel. Federal
Reserve Bank of New York Staff Reports 479.
Lochner, L. and A. Monge-Naranjo. 2012. The Nature of Credit Constraints and Human Capital.
American Economic Review, 101(6): 2487-2529.
Lochner, L., T. Stinebrickner, and U. Sulemanoglu. 2013. The Importance of Financial Resources for
Student Loan Repayment: Evidence from the Canada Student Loans Program. CIBC Working Paper
#2013-7, University of Western Ontario.
Looney, Adam and Constantine Yannelis. 2015. “A Crisis in Student Loans?” Brookings Institution,
Washington, D.C. http://www.brookings.edu/about/projects/bpea/papers/2015/looney-yannelis-student-
loan-defaults
Mather, M. & D. Lavery. 2010, September. In U.S., Proportion Married at Lowest Recorded Levels.
Population Reference Bureau Articles.
Matsudaira, J. 2016. Economic Conditions and the Living Arrangements of Young Adults. Journal of
Population Economics.
McGarry, K. & R. Schoeni. 1995. Transfer Behavior in the Health and Retirement Study; Measurement
and the Redistribution of Resources within the Family. Journal of Human Resources 30: S185-S226.
MeasureOne. 2013. The MeasureOne Private Student Loan Report 2013. San Francisco, CA: D.
Arvidson, D. Feshbach, R. Parikh, & J. Weinstein.
41
Mezza, Alvaro, Kamila Sommer, and Shane Sherlund. 2014. Student Loans and Homeownership Trends.
FEDS Notes, October 15, 2014.
Molloy, R., C. Smith, & A. Wozniak. 2014. Declining Migration within the U.S.: The Role of the Labor
Market. National Bureau of Economic Research Working Papers 20065.
Mykyta, L. & S. Macartney. 2011. The effects of recession on household composition: “doubling up” and
economic well-being. SEHSD Working Paper 2011-4.
National Association of Realtors (NAR). 2014, March 20. February Existing-Home Sales Remain
Subdued. NAR News Releases.
National Defense Authorization Act for Fiscal Year 2013, H.R. 4310.
Population Reference Bureau, 2012, Fact Sheet: The Decline in U.S. Fertility. World Population Data
Sheet 2012.
State Higher Education Executive Officers. 2013. State Higher Education Finance – FY2012.
http://www.sheeo.org/sites/default/files/publications/SHEF-FY12
Stock, J. H. & M. Yogo. 2005. Testing for Weak Instruments in Linear IV Regression. Identification and
Inference for Econometric Models: Essays in Honor of Thomas Rothenberg, ed. D. W. K. Andrews & J.
H. Stock, 80-108. New York: Cambridge University Press.
Whittington, L. A. & H. E. Peters. 1996. Economic Incentives for Financial and Residential
Independence. Demography 33(1): 82-97.
Wolfers, J. 2010, October 13. How Marriage Survives. The New York Times: A25.
42
Appendix
a. Comparison of our estimates of the national co-residence trend to those of prior or concurrent
studies using large and (arguably) reliable surveys
Of course, others have documented this large and ongoing change in intergenerational co-
residence in the U.S., either over earlier periods of time or for very recent years, in parallel to
this study. Their findings using large existing surveys and other sources provide us with an
opportunity to validate our measures of intergenerational co-residence in the comparatively
novel, entirely administrative Consumer Credit Panel. Matsudaira (2016) studies co-residence
with parents among young adult Americans using decennial Census data from 1960 through
2000 (as well as some ACS data thereafter). Matsudaira, therefore, provides a valuable point of
comparison between our year 2000 intergenerational co-residence rate for 25-year-olds and a rate
calculated in the large and reliable decennial Census as a part of careful prior research. Where
Matsudaira measures a 25 percent rate of co-residence with parents among 25-year-old men, and
a 21 percent rate among 25-year-old women during 2000, we find a 29 percent rate of co-
residence with parents at the end of 2000 among all 25-year-olds in the CCP. Our analysis of our
co-residence criterion applied to the CPS suggests that 2 percentage points out of the 29 are
likely miscategorized. The distance between the Matsudaira’s 23 percent co-residence rate and
our 29 percent co-residence rate may be accounted for by a combination of this
miscategorization and the difference generated by our broad definition of parent or similar elder
and Matsudaira’s parent-only criterion.
Paciorek (2014) is particularly relevant for our purposes, as he employs CPS data, an
additional, detailed, and arguably quite reliable source, and he applies a measure of co-residence
with parents that is quite close to our own. His broad measure of intergenerational co-residence
status for 18- to 31-year-olds in the 2000-2012 March CPS includes youth who are “living with
older relatives”, and excludes those living in group quarters. Hence Paciorek’s co-residence
criterion closely resembles an implementation of our CCP co-residence criterion for the survey
data of the CPS. Using this approach, he traces an increase in intergenerational co-residence
among 18- to 31-year-olds in the CPS from 39 to 46 percent between 2000 and 2012. By
comparison, we measure an increase from roughly 29 percent to more than 44 percent over the
same period for 25-year-olds in the CCP. This comparison demonstrates two things: the height of
co-residence at the end of our panel is not evidence of anomalous measures or poor data quality,
43
but instead aligns with the surprising height of intergenerational co-residence rates measured by
other researchers using reliable sources. Second, we chose to study ages in the mid-twenties
because, in our data, this seemed to be the age at which co-residence was changing most rapidly.
Where the vast majority of 18-year-olds co-reside with elders and thirtysomethings have largely
gained independence, the residential circumstances of Americans’ mid-twenties appear to be
undergoing rapid reform. Hence we are unsurprised to find a flatter co-residence trend for the
average among 18- to 31-year olds than the trend we measure for 25-year-olds, who stand at the
precise point of the greatest residential upheaval.
Finally, Dettling and Hsu (2014, 2015) measure intergenerational co-residence in the
CPS over many years, including very recent waves. This final point of comparison with the
literature allows us to consider the accuracy of our CCP co-residence measure through 2013.
Dettling and Hsu adopt a narrower definition of intergenerational co-residence: living with a
parent, which they can measure reasonably reliably given the detail available in the CPS.57 They
track co-residence for CPS youth who are ages 18 to 31. The prevalence of co-residence with
parents in their data is first flat near 31 percent over the early- and mid-2000s, and then climbs
from roughly 31 to 37 percent by 2013.58 Despite the narrower co-residence criterion that
Dettling and Hsu apply, the rate they measure reaches a height that approaches the 43 percent
that we observe in the CCP for 2013. Like the Dettling and Hsu CPS series, our CCP co-
residence trend includes a comparatively flat region in the mid-2000s. An important point of
distinction is the wide age 18 to 31 band used in each of the CPS papers, as compared with our
age 25 trend. Like Paciorek, Dettling and Hsu’s age 18 to 31 co-residence slope is considerably
flatter than the slope of intergenerational co-residence among 25-year-olds that we measure in
the CCP.
57 As an interesting but likely inconsequential, side note, we have been surprised to learn of the difficulty inherent in
measuring co-residence with parents in both survey and administrative data. In survey data, in order to infer co-
residence with parents, one must either ask about living with parents outright, which is a somewhat narrow survey
item to be applied to every household member and is thus unpopular, or one must document the structure of
relationships among all household members. The CPS, for example, tracks up to 15 household members. The exact
relationship between each possible pair among the 15 is not covered in its entirety, as of course this would be a
prohibitively costly data gathering exercise. However, the relationship accounting available in the CPS remains
unusually detailed.
58 Relatedly, a 2013 report from the Pew Research Center, based on their own analysis of the March Current
Population Survey (CPS), reported that 32 percent of 18-31-year-olds in 2007, 34 percent in 2009, and 36 percent in
2012 live with parents. The Pew analysis defines an individual as living with a parent only if she lives with a parent
or step-parent, not a parent-in-law or the partner of a parent, and only if she is not herself a head of household.
44
b. On the exogeneity of state-cohort mean tuition to post-schooling residential outcomes
State-cohort average tuition is included in expression (1) as an exogenous measure of the
cost of college for the population whose residential outcome we are estimating. The assumption
we impose is that variation in this tuition measure, once we condition on the calendar year, the
state, and the employment, youth unemployment, mean wages, and house price index for the
state-cohort-year, is exogenous to the state-cohort-year’s rate of intergenerational co-residence
(or living alone, with roommates, or in a couple). Practically speaking, we are all aware of
extensive time-fixed, cross-state variation in college and university tuition. Further, the broader
business cycle in the U.S. can be expected to affect state budgeting, and therefore state
appropriations for higher education, in a non-linear fashion over time. Local economic
conditions may deviate from the national cycle, and these are accounted for in the estimation
using four standard measures of prevailing economic conditions. The relationship that we
estimate between college costs and residential outcomes is identified using variation in average
tuition beyond the variation associated with each of these aforementioned factors.
Examples of the sort of tuition variation we have in mind often arise from legislative shocks.
In one example, large portions of the higher education budgets of 43 states in 2010, and 31 states
in 2011, were heavily dependent on federal American Recovery and Reinvestment Act (ARRA)
funds. In 2012, federal ARRA funding dried up for the states. This constituted a meaningful
negative shock to the higher education budgets of 31 states, and yet not a meaningful shock to
the higher education budgets of 19 states. Any difference across states in tuition growth from
2011 to 2012 or even 2013 generated by the differential impact on states of the withdrawal of
ARRA funding, over and above its effects on local labor and housing markets, will serve to
identify our tuition coefficient.59 Another example appears in Lawrence Journal-World (2013).
In 2012, Republican and Democratic Kansas state legislators engaged in negotiations regarding
the percent of funds to cut from the state’s higher education budget appropriations. To the extent
that realizations of such negotiations in state legislatures from year to year deviate from the
state’s usual budgeting outcomes, from national trends in states’ higher education budgeting, and
from regional business cycles as represented by state employment, youth unemployment, wages,
59 On state appropriations, state board of regents tuition-setting, and the process described in this paragraph, see, for
example, State Higher Education Executive Officers (2013).
45
and house prices, they will contribute to the identification of the tuition association with youth
residence outcomes that we estimate.
Other researchers have turned to state-year tuition means for arguably exogenous variation
in the cost of college. Kane (1994), Rouse (1995), and Souleles (2000), for example, have relied
on state college tuition averages to estimate, respectively, the influence of college costs on the
enrollment rates of African American students, the influence of community colleges on final
educational attainment, and the influence of college costs on the consumption and saving
decisions of students’ families.
Several empirical findings argue for the validity of the exogeneity assumption for our
college cost proxy. In Bleemer et al. (2017), we find that estimates of the tuition effect on
educational attainment, student borrowing, and homeownership are insensitive to the inclusion
(or exclusion) of controls for local employment, youth unemployment, wages, and house prices.
These results go some distance toward addressing the possibility of endogeneity of state-cohort
tuition shocks to youth residential outcomes via local economic conditions. Further, we estimate
precise and inconsequential associations of educational attainment (college enrollment, college
graduation, years of schooling) with state-cohort tuition levels. These results call into question
any claims that the tuition association with residential outcomes that we estimate arises solely
from schooling attainments that decline as tuition rises. (Though, if present, we would interpret
such schooling effects as simply one mechanism by which college costs affect young Americans’
post-college outcomes.)
Of course, tuition and residential outcomes could both be driven by aspects of local
economic conditions not represented in employment, youth unemployment, wage, and house
price measures. However, if this were the case, we might expect such factors to affect co-
residence outcomes for youth who do and do not attend college. The results in section VI,
however, indicate a substantial and precisely estimated tuition-co-residence relationship only
among higher college graduation states.60 Much stronger estimated tuition effects for populations
60 The notion that youth in higher education states should be more responsive to within-state tuition changes in their
post-schooling living arrangements is akin to the assumption underlying U.S.-China trade shock studies of the U.S.
labor market. There, the effect of manufacturing trade with China on U.S. workers is expected to be greater in
regions in which workers participate more heavily in the affected sector. See, for example, Autor, Dorn, and Hanson
(2013).
46
more exposed to college tuition would seem to argue against broader local economic factors that
drive both tuition and co-residence.61
In related research, Mezza et al. (2016) instrument student debt using state-cohort mean
tuition and demonstrate that their estimated effect is unresponsive to the inclusion (or exclusion)
of measures of local economic conditions. Further, they find that homeownership is closely
associated with state-cohort mean tuition only for youth who attend college, and unrelated with
tuition among youth who do not attend college.
61 Of course, our local aggregates must each include some college-educated youth, and so a finding of some tuition
effect on residential outcomes among lower education regions would not necessarily signal endogeneity of tuition to
residential outcomes via unmeasured local conditions.
47
Figure 1: Enrollment‐weighted mean public and private tuition by state, 2001‐2013
48
0
5
10
15
20
25
30
35
40
45
50
2003 2005 2007 2009 2011 2013 2015
Pe
rc
en
t
o
f
Po
p
u
la
ti
o
n
Figure 2: Co‐residence with parents among 25‐year‐olds in the CCP, 1999‐
2016
49
Figure 3a: Percentage of 25-year-olds living with parents in 2002-2003
Figure 3b: Percentage of 25-year-olds living with parents in 2012-2013
50
AK
ALAR
AZCA
CO
CT
DC
DE
FL GA
HI
IA
ID
IL
IN
KS
KY
LA
MA
MD
ME
MI
MN
MO
MS
MT
NC
ND
NE
NH
NJ
NM
NV
NY
OH
OK
ORPA
RI
SC
SD
TN
TX
UT
VA
VT
WA
WI
WV
WY
‐10
‐5
0
5
10
15
20
‐5 0 5 10 15 20
P
e
rc
e
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Increase in Average Student Debt per Graduate
Figure 4: Changes in Student Debt and Parental Co‐Residence, 2008 to 2013
51
52
Table 1: Descriptive statistics, pooled locations and parent v. independent youth locations
(1) (2) (3) (4)
Stock Values
All All No Parents Parents
Employment to Population, QCEW 57.54 ‐0.860 0.069 ‐0.745
(13.27) (2.6) (13.66) (9.85)
Youth unemployment, CPS 10.62 ‐0.021 0.130 ‐0.252
(3.48) (3.76) (3.82) (3.72)
Average Weekly Wage, $100s, QCEW 8.6 0.201 0.247 0.134
(1.7) (1.69) (1.89) (1.36)
House Price Index, 100 in 2000, CoreLogic 149.76 3.359 2.803 3.720
(33.79) (30.27) (30.88) (28.78)
State‐level urban pct of population, Census 74.1 ‐ ‐ ‐
(14.7)
Graduation rate, state‐cohort, IPEDS 34.1 28.90 29.37 29.26
(levels in all columns) (13.3) (10.81) (10.81) (10.86)
Average Total Sticker Cost, $1000s, IPEDS 11.8 12.47 12.02 12.99
(levels in all columns) (4.7) (4.41) (4.27) (4.50)
Living with Parents, CCP 39.8 41.85 ‐ ‐
(9.2) (49.33)
Move in / out over two years, CCP ‐ ‐ 18.23 33.73
(25.43) (33.46)
N = 1,020 546,824 273,574 196,864
Notes: Column (1) data are state‐year‐cohort aggregates. Column (2) ‐ (4) data are county‐year‐
cohort aggregates. Standard deviations in parentheses. Tuitions are state‐cohort averages
of age 20‐22 tuition for each cohort.
Flow Values
53
Table 2: Fixed effects model of the share of 23 and 25 year‐olds in the state who are living with parents
(1) (2) (3) (4) (5) (6) (7)
All Lower half grad rate Upper half grad rate First quartile Second quartile Third quartile Fourth quartile
Tuition mean, $1000s, IPEDS 0.140 ‐0.051 0.718** ‐0.217 0.696 0.652 0.935**
(0.198) (0.229) (0.265) (0.341) (0.413) (0.781) (0.380)
Employment to Population, QCEW ‐0.034 0.160*** ‐0.072 0.108 0.327*** 0.046 ‐0.146*
(0.062) (0.049) (0.067) (0.185) (0.080) (0.132) (0.082)
Youth unemployment, state, CPS 0.060 0.065 0.053 0.110 0.020 ‐0.013 0.073
(0.062) (0.072) (0.079) (0.144) (0.069) (0.109) (0.075)
Avg. Weekly Wage, $100s, QCEW ‐2.119*** ‐3.884** ‐1.577 ‐5.689* ‐2.886 ‐1.588 ‐1.616
(0.709) (1.669) (0.940) (2.942) (2.823) (2.157) (1.077)
House Price Index, 100 in 2000, ‐0.013* ‐0.005 ‐0.012 0.014 ‐0.007 ‐0.022 ‐0.005
CoreLogic (0.007) (0.010) (0.026) (0.019) (0.022) (0.040) (0.026)
Age = 23 6.768*** 6.272*** 6.946*** 5.705*** 6.328*** 6.889*** 6.839***
(0.394) (0.418) (0.647) (0.451) (0.862) (0.769) (1.063)
Year = 2005 3.671*** 4.210*** 2.052*** 4.506*** 3.268*** 2.699** 1.449*
(0.409) (0.414) (0.546) (0.699) (0.557) (1.007) (0.807)
Year = 2006 6.224*** 6.241*** 4.278*** 6.282*** 4.618*** 4.690*** 3.840***
(0.412) (0.488) (0.834) (0.862) (1.117) (1.095) (0.976)
Year = 2007 7.642*** 8.579*** 4.416*** 8.736*** 6.354*** 5.871** 2.641
(0.736) (0.687) (1.139) (1.271) (1.697) (2.164) (1.892)
Year = 2008 9.092*** 10.290*** 5.315*** 11.431*** 6.396*** 5.806* 4.588***
(0.949) (1.233) (1.197) (2.236) (2.023) (2.817) (1.566)
Year = 2009 8.939*** 10.346*** 4.716*** 11.368*** 6.564*** 5.534* 3.186
(0.965) (1.006) (1.327) (1.821) (2.218) (2.988) (2.203)
Year = 2010 13.453*** 15.545*** 8.933*** 17.421*** 10.561*** 9.994*** 7.459***
(1.164) (1.443) (1.429) (2.243) (2.830) (2.995) (2.420)
Year = 2011 13.803*** 16.394*** 8.622*** 17.662*** 11.624*** 9.738*** 7.323**
(1.280) (1.499) (1.518) (2.407) (2.953) (3.341) (2.574)
Year = 2012 14.903*** 18.229*** 9.045*** 19.915*** 12.442*** 10.623** 6.126*
(1.522) (1.842) (1.984) (3.166) (3.651) (4.262) (3.039)
Year = 2013 15.556*** 19.386*** 9.064*** 21.823*** 12.808*** 10.257* 6.767**
(1.716) (2.398) (2.076) (4.463) (3.823) (5.325) (3.020)
Year = 2014 19.930*** 24.174*** 12.721*** 25.945*** 17.864*** 13.923** 10.456**
(1.804) (2.213) (2.200) (3.791) (4.617) (5.357) (3.582)
Year = 2015 21.069*** 25.714*** 13.045*** 27.965*** 18.154*** 14.752** 9.487**
(2.164) (2.698) (2.600) (4.786) (4.885) (6.628) (3.446)
State FE Yes Yes Yes Yes Yes Yes Yes
R‐squared 0.881 0.904 0.863 0.897 0.928 0.837 0.909
N = 1019 475 544 227 248 282 262
Notes: *, **, and *** indicate significance at the ten, five, and one percent level, respectively. The sample covers 2003‐2015.
54
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53
Table 4: Fixed effects model of the share of 23 and 25 year‐olds in the state who are living with parents by region
(1) (2) (3)
All Lower half grad rate Upper half grad rate
State public college tuition mean, $1000s, IPEDS 0.185 0.283 0.653*
* Northeast (0.232) (0.284) (0.344)
State public college tuition mean, $1000s, IPEDS ‐0.023 ‐0.078 0.541
* Midwest (0.283) (0.227) (0.579)
State public college tuition mean, $1000s, IPEDS ‐0.139 ‐0.418 0.246
* South Atlantic (0.326) (0.448) (0.480)
State public college tuition mean, $1000s, IPEDS 0.054 ‐0.231 ‐0.619
* West (0.197) (0.242) (0.991)
Employment to Population, QCEW ‐0.045 0.128** ‐0.077
(0.056) (0.056) (0.066)
Youth unemployment, state, CPS 0.051 0.064 0.064
(0.060) (0.078) (0.071)
Average Weekly Wage, $100s, QCEW ‐1.848** ‐3.218** ‐1.368
(0.709) (1.468) (0.853)
House Price Index, 100 in 2000, CoreLogic ‐0.011 ‐0.002 ‐0.004
(0.008) (0.011) (0.020)
Age = 23 6.946*** 6.538*** 7.258***
(0.396) (0.438) (0.656)
Year = 2005 3.739*** 4.205*** 2.179***
(0.401) (0.415) (0.652)
Year = 2006 6.362*** 6.368*** 4.517***
(0.428) (0.496) (0.824)
Year = 2007 7.736*** 8.476*** 4.594***
(0.708) (0.677) (1.492)
Year = 2008 9.228*** 10.268*** 5.540***
(0.937) (1.233) (1.689)
Year = 2009 9.227*** 10.535*** 5.076**
(1.011) (1.122) (1.970)
Year = 2010 13.962*** 15.950*** 9.587***
(1.325) (1.763) (2.031)
Year = 2011 14.455*** 16.937*** 9.498***
(1.480) (1.950) (2.209)
Year = 2012 15.623*** 18.803*** 10.140***
(1.733) (2.313) (2.821)
Year = 2013 16.282*** 19.930*** 10.303***
(1.965) (2.803) (3.101)
Year = 2014 20.774*** 24.864*** 14.132***
(2.051) (2.724) (3.333)
Year = 2015 21.953*** 26.431*** 14.632***
(2.413) (3.180) (3.918)
State FE Yes Yes Yes
R‐squared 0.882 0.905 0.862
N = 999 475 524
Notes: *, **, and *** indicate significance at the ten, five, and one percent level, respectively. The sample covers 2003‐2015.
54
Table 5: Fixed effects model of the share of 23 and 25 year‐olds in the state who are living with parents, urban v. rural
(1) (2) (3)
All Lower half grad rate Upper half grad rate
Percent of the state population living in ‐1.283*** ‐1.398*** ‐0.082
urban areas (0.092) (0.120) (0.101)
State public college tuition mean, $1000s, IPEDS ‐1.659*** ‐2.630*** ‐0.302
(0.552) (0.816) (0.568)
% living in urban areas * state mean tuition 0.020*** 0.028*** 0.011*
(0.005) (0.007) (0.006)
Employment to Population, QCEW ‐0.019 0.160*** ‐0.067
(0.053) (0.045) (0.067)
Youth unemployment, state, CPS 0.042 0.032 0.049
(0.053) (0.073) (0.077)
Average Weekly Wage, $100s, QCEW ‐2.453*** ‐3.822** ‐1.535*
(0.806) (1.587) (0.835)
House Price Index, 100 in 2000, CoreLogic ‐0.003 0.003 ‐0.011
(0.008) (0.010) (0.026)
Age = 23 7.026*** 6.498*** 7.259***
(0.395) (0.429) (0.552)
Year = 2005 3.720*** 4.287*** 2.181***
(0.392) (0.405) (0.537)
Year = 2006 6.193*** 6.245*** 4.602***
(0.382) (0.488) (0.783)
Year = 2007 7.699*** 8.550*** 4.797***
(0.626) (0.668) (1.040)
Year = 2008 9.345*** 10.363*** 5.879***
(0.849) (1.205) (1.173)
Year = 2009 9.463*** 10.751*** 5.420***
(0.901) (1.079) (1.211)
Year = 2010 14.391*** 16.375*** 9.852***
(1.198) (1.686) (1.348)
Year = 2011 14.912*** 17.430*** 9.708***
(1.317) (1.779) (1.425)
Year = 2012 16.234*** 19.351*** 10.288***
(1.578) (2.163) (1.927)
Year = 2013 17.109*** 20.548*** 10.450***
(1.833) (2.722) (2.016)
Year = 2014 21.486*** 25.326*** 14.250***
(1.851) (2.503) (2.041)
Year = 2015 22.658*** 26.744*** 14.726***
(2.165) (2.914) (2.519)
State and Age FE Yes Yes
R‐squared 0.884 0.906 0.864
N = 1019 475 544
Notes: *, **, and *** indicate significance at the ten, five, and one percent level, respectively. The sample covers 2003‐2015.
57
Table 6: County‐level flow regression of parental co‐residence, Moving in
(1) (2) (3) (4) (5) (6)
Employment to Population, county, QCEW ‐0.203*** ‐0.226*** ‐0.284*** ‐0.286*** ‐0.306*** ‐0.308***
(0.050) (0.052) (0.039) (0.040) (0.041) (0.041)
Average Weekly Wage, $1000s, QCEW ‐1.249*** ‐1.148*** ‐1.463*** ‐1.502*** ‐1.456*** ‐1.501***
(0.360) (0.364) (0.372) (0.382) (0.357) (0.365)
House Price Index, county, 100 in 2000, CoreLogi 0.043*** 0.053*** 0.068*** 0.067*** ‐0.007 ‐0.008
(0.009) (0.009) (0.009) (0.009) (0.016) (0.016)
State public college tuition mean, $1000s, IPEDS ‐ 1.255*** ‐ ‐0.166 ‐ ‐0.194
(0.207) (0.214) (0.214)
State & Age FEs Yes Yes Yes Yes Yes Yes
Linear trend No No Yes Yes No No
Year FE No No No No Yes Yes
R‐squared 0.028 0.034 0.036 0.036 0.042 0.042
N = 21,921 21,827 21,921 21,827 21,921 21,827
Mean of dependent variable 17 17 17 17 17 17
Notes: *, **, and *** indicate significance at the ten, five, and one percent level, respectively.
The sample covers 2003‐2015. Observations other than tuition are measured at the county level.
58
Table 7: County‐level flow regression of parental co‐residence, Moving out
(1) (2) (3) (4) (5) (6)
Employment to Population, county, QCEW 0.051 0.075 0.082 0.076 0.052 0.046
(0.101) (0.097) (0.097) (0.098) (0.102) (0.102)
Average Weekly Wage, county, $1000s, QCEW ‐3.993*** ‐4.195*** ‐4.046*** ‐3.913*** ‐4.006*** ‐3.870***
(0.662) (0.651) (0.652) (0.634) (0.671) (0.652)
House Price Index, county, 100 in 2000, CoreLogic 0.026 0.022 0.028* 0.028* ‐0.010 ‐0.009
(0.020) (0.016) (0.016) (0.016) (0.025) (0.025)
State public college tuition mean, $1000s, IPEDS ‐ ‐1.523*** ‐ 0.537 ‐ 0.535
(0.197) (0.607) (0.606)
State & Age FEs Yes Yes Yes Yes Yes Yes
Linear trend No No Yes Yes No No
Year FE No No No No Yes Yes
R‐squared 0.020 0.030 0.035 0.036 0.037 0.038
N = 18,873 18,806 18,873 18,806 18,873 18,806
Mean of dependent variable 38 38 38 38 38 38
Notes: *, **, and *** indicate significance at the ten, five, and one percent level, respectively.
The sample covers 2003‐2015. Observations other than tuition are measured at the county level.
Joint Center for Housing Studies
Harvard University
Effect of Changing Demographics on Young Adult Homeownership Rates
Rachel Bogardus Drew
February 2015
W15-2
© 2015 by Rachel Bogardus Drew. All rights reserved. Short sections of text, not to exceed two
paragraphs, may be quoted without explicit permission provided that full credit, including © notice, is
given to the source.
Any opinions expressed are those of the authors and not those of the Joint Center for Housing Studies of
Harvard University or of any of the persons or organizations providing support to the Joint Center for
Housing Studies.
Abstract: Changing socio-demographic characteristics of young adult households – those with
householders ages 25 to 34 – are having an impact on their propensities for homeownership.
Increases in the share of minority and unmarried householders are placing downward pressure
on homeownership rates for this group, while at the same time higher levels of income and
educational attainment are providing a boost. But events in housing markets over the last
twenty years have masked these effects, first by making homeownership more attractive and
attainable in the years leading up to the Great Recession, thus pushing homeownership rates
up, then by lowering them after 2005 as constraints on credit and increasingly poor economic
conditions inhibited home purchases by young adults. Untangling the combined effect of these
trends requires analyses that can decompose demographic trends from macro and micro
market conditions, to isolate the effects that specific changes in characteristics have had on
young adult homeownership rates over time. This paper describes such an analysis based on
econometric methods that estimate the expected change in homeownership over time due to
socio-demographic factors, and finds that absent the boom and bust in housing markets over
the last two decades young adults would likely have lowered their homeownership rates by
over 5 percentage points, with much of that decline caused by changes in marital and family
status. It concludes with some commentary on the implications of these findings for the
homeownership tendencies of young adults going forward.
Introduction
The housing boom and bust of the last twenty years has produced some dramatic swings in
homeownership rates. Arguably, one of the groups most affected are young adult households
(with householders ages 25 to 34), who during the boom experienced the largest increase of
any age group in homeownership rates, followed by the greatest decline during the housing
market downturn. Their homeownership rate rose from 45 percent in 1995 to 50 percent by
2005. After reaching that peak, however, the rate declined to 40 percent by 2014 (Figure 1).
Figure 1: Homeownership Rates by Age, 1995-2014
Source: Tabulations of the 1995-2014 Current Population Survey.
The primary cause of this rise and fall in young adult homeownership rates over this period was
the extraordinary conditions in the market for homes and home mortgages. The late 1990s and
early 2000s saw an unprecedented boom in the national economy, which elevated incomes and
house prices, making homeownership both more attractive and more attainable. Coupled with
innovations in mortgage markets that made financing home purchases easier for more
households, these changes encouraged more households to buy than might have otherwise
done so. As a result, homeownership rates rose to record levels by the mid-2000s. Soon after,
4
0%
45%
50%
55%
60%
65%
70%
75%
80%
85%
1995 1997 1999 2001 2003 2005 2007 2009 2011 2013
65-74
55-64
45-54
35-44
25-34
1
however, the favorable conditions for homeownership abruptly changed as house prices
stagnated and then declined, and the worst recession since the Great Depression set off a wave
of mortgage defaults and foreclosures that caused lenders to restrict credit to potential
homebuyers. The lingering economic malaise that followed further inhibited home purchases,
especially for young adults with increasingly bleak income and employment prospects, rising
student debt levels, and wary perspectives on the wealth potential of homeownership (Fisher
and Gervais 2011; Fry 2013).
During these wild swings in housing markets, however, young adults have continued to undergo
substantial shifts in their personal characteristics that were mostly underway before the
homeownership boom, with important consequences for their propensities towards
homeownership. The share of minority young adults, for example, has increased from under 20
percent in the 1970s to 40 percent currently, mostly due to the growth of native and foreign-
born Hispanic and Asian populations. As minorities and immigrants are less likely than
comparable whites and natives to own, this shift likely contributed to a decline in
homeownership for young adults. Lower rates of marriage and family formation are also placing
downward pressure on homeownership rates, as are higher shares of young adults living in
central cities. Increasing attention to educational attainment, meanwhile, has also raised the
share of young adults who are college graduates, thereby improving their income prospects and
thus their demand for homeownership.
Previous research has suggested that the combined result of these socio-demographic shifts
has been to lower the overall homeownership rate of young adults, with economic conditions
offsetting that decline during the housing boom and exacerbating it during the bust (e.g.,
Gabriel and Rosenthal, forthcoming). Yet little attention has been paid to untangling the
individual effects of these distinct trends in young adult characteristics, or to quantifying how
much they contributed to the fall in homeownership rates over the last decade. This paper digs
deeper into this issue, by detailing how the socio-demographic characteristics of young adults
2
have changed over time, and then modeling the expected impact on homeownership rates of
these changes during both the boom and bust.
Young adults play a particular and important role in housing markets that warrants this
investigation of their homeownership tendencies. Despite being a minority of households, they
represent the majority of first time homebuyers (Fisher and Gervais 2011). The current and
rising generation of young adults is also poised to be the largest to come of age since the Baby
Boomers in the 1970s and ’80s (U.S. Census Bureau 2012). Not only will their numbers influence
housing demand in the near future, but they will also, with their different tastes and
preferences relative to prior generations, drive trends in the types and locations of housing that
will be built. Surveys show that young adults today increasingly prefer smaller homes close to
urban amenities, rather than the large houses in suburban and exurban locations that their
Baby Boomer parents purchased in the 1980s and 1990s (Demand Institute 2014). Given that
young adults will be called on to replace Baby Boomers as the latter start to leave the housing
market in the next few decades, the implications of young adult preferences for housing will
have significant impacts on the makeup of the housing stock for years to come (Nelson 2013).
Understanding what drives trends in their home purchasing tendencies, therefore, is important
to predicting and preparing for these changes going forward.
The paper begins by describing foundational and recent research on factors that influence
housing tenure (i.e., whether a household owns or rents), with emphasis on studies of socio-
demographic characteristics and the homeownership tendencies of young adults from the last
two decades. This is followed by a description of the data and trends demonstrating the extent
of changes in young adult characteristics over this time period. Regression models then isolate
the individual contributions of these characteristics to young adult homeownership
propensities, with a shift-share analysis to decompose their actual from expected effects on
changes in homeownership shares over time. The result of these analyses suggests that, based
on changes in socio-demographic characteristics alone, young adult homeownership rates
should have declined by over 5 percentage points from 1995 to 2014. Most of the expected
3
decline, moreover, is due to changes in the marital and family status of young adults over time,
as they are increasingly delaying marriage in favor of cohabitation and additional educational
attainment and career development. The final section discusses the implications for the near
future of these findings about socio-demographic forces
on young adult homeownership rates.
Literature Review
Most studies of the determinants of housing tenure outcomes in the United States consider
homeownership to be the product of combined demand for shelter as a consumption good and
for housing wealth as an investment (Henderson and Ioannides 1983; Ioannides and Rosenthal
1994; Ortalo-Magné and Rady 2002). The investment side of the equation is determined by
macro-economic and housing market conditions (e.g., user costs, price appreciation, and value
of alternative investments) and the financial condition of households (e.g., wealth and income,
risk tolerance, liquidity needs), which influence both demand for and constraints on tenure
choices (Ioannides and Rosenthal 1994; Ortalo-Magné and Rady 2002; Sinai and Souleles 2005;
Di and Liu 2007). Consumption demand, on the other hand, is assumed to be driven by personal
preferences for housing attributes that are associated with owning and renting (e.g., stability
versus mobility of residence, control versus freedom from responsibility for property). Since
such preferences are difficult to directly observe and measure, many tenure studies use socio-
demographic characteristics as proxies (Megbolugbe, Marks, and Shwartz 1991; Timmermans,
Molin, and van Noortwijk 1994; Jansen, Coolen, and Goetgeluk 2011). Traits such as
race/ethnicity, age, marital/family status, and educational attainment are assumed to represent
the lifestyle and life stage of households, which shape their needs and tastes for housing. Some
studies consider how changes in these characteristics over time predict transitions from renting
to owning and vice versa (e.g., Clark and Dieleman 1996; Clark, Deurloo, and Dieleman 2003). In
such analyses, personal financial conditions again play a role, but more as a constraint on than
as a driver of preferences.
Of primary interest for this paper are specific types of socio-demographic characteristics that
are known to correlate with tenure choice (owning versus renting), and which may help in
4
estimating how young adult homeownership tendencies have changed over time. The rest of
this literature review thus focuses on studies that emphasize these factors. Race and ethnicity,
for instance, are common topics of interest among tenure studies, which have consistently
identified lower rates of homeownership among minorities relative to white households. Some
of this gap is explained by differences between whites and minorities in other characteristics
such as age, income, location, and education (Wachter and Megbolugbe 1992; Coulson 1999;
Painter, Gabriel, and Myers 2001; Haurin, Herbert, and Rosenthal 2007). The lower
homeownership rates of minorities that remain, even after controlling for these differences,
are often attributed to reduced access to homeownership for minorities, rather than to lower
preferences for owning relative to similar white households (Herbert et al. 2005).
An important source of racial differences in homeownership rates is nativity status, with
immigrants generally less likely to own than native-born householders. The gaps in
homeownership rates by nativity are mitigated, however, by longer durations of residence in
the U.S., stronger command of English, financial literacy, and education—so much so that some
long-term and high achieving immigrants have been found to surpass comparable native-born
households in homeownership attainment (Myers, Megbolugbe, and Lee 1998; Coulson 1999;
Drew 2002; Haurin and Rosenthal 2009). The children of immigrants, meanwhile, all else equal,
also have high propensities for homeownership relative to children with native-born parents
(Rosenbaum and Friedman 2004).
Household life stage, indicated by the marital status and family composition of residents, also
directly influences preferences for different housing types and tenures. Married couples, for
example, are presumed to favor more (financially and residentially) stable living situations that
reflect their long-term relationship commitment, and thus to prefer to own rather than to rent
(Clark, Deurloo, and Dieleman 1994; Clark and Huang, 2003; Grinstein-Weiss et al. 2011). Dual
incomes also help increase the affordability and accessibility of homeownership for partnered
versus single-person households (Hendershott et al. 2009). The presence of children in the
household further promotes ownership, which is often associated with both larger dwellings
5
and locations in neighborhoods close to family-friendly amenities and better schools (Clark and
Davies Withers 2007). The positive effect on homeownership of being married and having
children also endures over the life course; divorcees and empty-nesters are more likely to own
than similar adults who have never been married or had children (Carliner 1974; Drew 2014).
One aspect of lifestyle that influences homeownership, because the relative availability of
owned and rented dwellings varies according to place, is the locational preference of
households. Living in a dense center city generally restricts ownership options, as the majority
of the housing stock located there is offered for rent, and most homes available for purchase
are condominiums in multifamily structures (Schwartz 2013). Suburbs and rural areas,
meanwhile, have fewer rental options and generally more homes for sale relative to cities.
Location also determines how affordable the housing stock is: people who choose to live in
high-cost markets may find their purchase options more constrained by their budgets than they
would in more moderately-priced parts of the country (Schwartz 2013).
Other socio-economic conditions associated with homeownership reflect the financial
resources of households, including current income and expected future income as determined
by educational attainment. High income households are more likely to own than those with
lower incomes, not only because they are better able to afford the down payment and high
transaction costs of owning, but also because they likely have higher investment demand for
real estate, as well as the means to pursue it as part of a diversified portfolio (Ioannides and
Rosenthal 1994; Ortalo-Magné and Rady 2002; Sinai and Souleles 2005). Having a high school or
college degree, meanwhile, substantially increases the expected lifetime earnings of individuals
relative to those without as much education, thus ensuring continued ability to afford
homeownership for the long term (Gyourko and Linneman 1997).
One of the most important personal characteristics related to homeownership, however, is age.
Homeownership rates tend to correlate positively with age for those under 50 years old, and
then level off before declining slightly among older seniors (Gyourko and Linneman 1997;
6
Gabriel and Rosenthal, forthcoming).1 The most rapid rise in homeownership rates occurs
between the early twenties and mid thirties, when most people are forming their own
households and settling into careers and lifestyles that will define them through their adult lives
(Haurin, Herbert, and Rosenthal 2007).
Indeed, several studies have focused on determinants of homeownership for young adults,
given the importance of this group to housing markets, and have confirmed that similar
demographic and financial forces determine tenure choice at this stage of life. Haurin,
Hendershott, and Kim (1994) studied the homeownership choices of individuals ages 20 to 33,
and found income to be a primary factor, along with the relative costs of owning and renting,
availability of resources for down payments, and demographic characteristics. Subsequent
analyses of the same data further found that marital status was an important indicator of
homeownership for young adults, and that married couples with two working spouses were
more likely to buy (Haurin, Hendershott, and Wachter 1996), while the presence of borrowing
constraints had a strong negative association with homeownership (Haurin, Hendershott, and
Wachter 1997). Gyourko and Linneman (1997), meanwhile, found that among young adults
with similar financial circumstances, gaps in homeownership rates by educational attainment
and race expanded between 1960 and 1990. At the same time, among households under 36,
the effect of marital and family status on homeownership was found to have decreased, as
more young adults delayed marriage and childbearing in favor of seeking further educational
and career opportunities (Gyourko and Linneman 1997).
The recent decline in homeownership rates among young adults has renewed interest in
studying this subset of households to understand their tenure decisions. Fisher and Gervais
(2011) identified two primary reasons for trends in homeownership observed between 1980
and 2000 among households with heads 25 to 44: declines in the share of such households that
are comprised of married couples, and increases in their long-term earnings risk. Gabriel and
1 Cross-sectional data on homeownership rates by age mask trends in cohort attainment of homeownership, which
suggest increasing shares of households owning homes up through age 70, and declines only among older seniors
(Masnick and Di 2001).
7
Rosenthal (forthcoming) look at more recent data to decompose the effects of socioeconomic
factors and market conditions on homeownership rates among households (segmented by
age), and find that personal and financial characteristics (including marital status, race, income,
educational attainment, disability status, nativity, labor market status, metro status, and three
housing market indicators) collectively contributed little to changes in homeownership rates
during the housing boom (2000-2005) and bust (2005-2009). Only income, metro area house
prices, and metro price volatility show much effect, and mostly among households in their mid
thirties and younger; specifically, having lower income, higher prices, and more volatility
decreases the likelihood of homeownership for younger households, though moreso in 2000
and 2009 than during the height of the housing boom in 2005. Gabriel and Rosenthal’s
conclusion that shifting demographic characteristics were relatively unimportant may well
simply reflect the short time frame of their analysis, over which shifts in such factors as marital
status and racial/ethnic composition would be less pronounced. In contrast, this period of
boom and bust was marked by sharp fluctuations in housing market and economic factors.
The analysis below is similar in some respects to that of Rosenthal and Gabriel (forthcoming), in
that it employs a shift-share analysis, using regression models, to separate the effects of
personal characteristics from those of market conditions on changes in homeownership rates
over the housing boom and bust period. It differs, however, in its exclusive focus on young
adults (ages 25-34), its emphasis on socio-demographic characteristics, its longer time frame for
the analysis, and its identification of specific characteristics that are driving demographically
expected shifts in tenure status over time. The following section describes these characteristics
and their trends among young adults through the housing boom and bust; a subsequent section
delves into the econometric analysis of their collective effects on homeownership rates.
Data and Descriptive Analysis
The data used in this analysis comes from the Current Population Survey’s Annual Social and
Economic (March) Supplement for the years 1995-2014 (CPS). The time frame covers the
presumed entirety of the homeownership boom and bust, as the national homeownership rate
8
in 2012-14 returned to its average 1960-2000 level. In addition to the wild swings in
homeownership rates observed during this period, the CPS shows some dramatic changes
occurring in the socio-demographic status of young adult households over the last twenty
years.2 This section describes some of these trends and discusses the expected effects of each
on young adult homeownership rates.
Race/Ethnicity and Nativity
One of the most striking changes in the composition of the young adult households during the
past two decades has been a substantial increase in the share of minorities, from 28 percent in
1995 to 41 percent in 2014 (Figure 2). Young Hispanic householders account for biggest
component of this growth: their share rose from 11 to 18 percent of households, with most of
these gains occurring during the boom years. Indeed, only 2.3 of the 13 percentage point
minority share gain occurred after 2005. The growth in minority households among young
adults has been caused in part by rising immigration rates, since many immigrants arrive in the
U.S. during their twenties. The share of foreign-born among 25-34 year old household heads
grew from 12 percent in the mid-1990s to 19 percent a decade later, before falling back slightly
during the recession to 17 percent.
2 All data presented in this section is based on the author’s calculations of weighted counts and shares of households
from the CPS, and may not match published tables available from the U. S. Census Bureau.
9
Figure 2: Minority and Foreign-born Shares of Young Adult Households, 1995-2014
Note: White young adult households are not shown in the chart and comprise the remainder of the distribution in
each year. Whites, Blacks, and Others are non-Hispanic, while Hispanics may be of any race. Other includes Asians
and multi-racial categories.
Source: Tabulations of the 1995-2014 Current Population Survey.
Given that non-white and foreign-born households generally have lower homeownership rates
than whites and native-born householders, shifts in the distribution of young adult households
towards the former likely served to depress overall homeownership rates for the age group as a
whole during this period. Yet minority and immigrant homeownership rates were also rising
during the housing boom (Herbert et al. 2005), potentially offsetting some of the dampening
effect of their share increases on young adult homeownership. Since the collapse of the
housing market, however, minority homeownership rates have declined more than those of
whites3 (U.S. Census Bureau 2014), and may have exacerbated the downward pressure placed
on homeownership rates by the increase in the minority share of young adult households since
2005.
3 Non-Hispanic white homeownership rates declined 3.5 percentage points from 2005-2014, versus 5.6 percentage
points for non-Hispanic Blacks, 3.3 percentage points for Hispanics, and 4.2 percentage points for non-Hispanic
Asian/Others, according to the Current Population Survey.
10
Income
The household income of young adults over the period analyzed here, when adjusted for
inflation and measured in constant categories, also underwent some noticeable changes. In
particular, the share of young adult households in the highest category, i.e., with real incomes
over $75,000 (expressed in 2014 dollars), increased from 28 percent in 1995 to 37 percent by
2002 (Figure 3). This gain was offset by declines in the share in the lowest income category,
under $25,000, from 21 to 15 percent. Since 2001, however, the low-income category has been
gaining share, and as of 2014 included 22 percent of young adult households.
Figure 3: Income Distribution of Young Adult Households (2014$), 1995-2014
Note: Incomes are expressed in 2014 dollars and adjusted for inflation by the CPI-UX for all consumers from the
Bureau of Labor Statistics.
Source: Tabulations of the 1995-2014 Current Population Survey.
Higher incomes are strongly associated with higher propensities for homeownership, so the
gains of young adults during the late 1990s likely increased their probability of owning homes
during the boom, even though the share in the highest income group declined slightly in the
early 2000s. Likewise, the rising share of low-income households subsequent to the housing
boom probably had a depressing effect on the homeownership rate of young adults in the more
10%
15%
20%
25%
30%
35%
40%
<$25K
$25-50K
$50-75K
$75K+
11
recent period.
Marital/Family Status
Another notable trend among young adults has been declines in the share that are married
and/or living with minor children. Like the increasing minority share, this shift is actually a
continuation of trends that date back to the 1970s. But while the rate of growth among non-
white households has slowed, the increase in unmarried and childless households has
accelerated in recent years, possibly in response to the recession (Cherlin et al. 2013). The
share of young adult householders living with a spouse, which declined from 60 percent in the
early 1980s, actually held steady at around 50 percent through most of the housing boom,
before falling to 42 percent by 2014 (Figure 4a). Most of this decline was offset by rising shares
of unmarried partner households, from 5 to 13 percent between 1995 and 2014, who despite
their coupled status are more like single young adults in their home buying behavior. The share
of young adults with children has also decreased over the last two decades, from around 54
percent to 48 percent (Figure 4b).
12
Figure 4: Marital and Parental Status of Young Adults, 1995-2014
a)
0%
10%
20%
30%
40%
50%
60%
19
95
19
96
19
97
19
98
19
99
20
00
20
01
20
02
20
03
20
04
20
05
20
06
20
07
20
08
20
09
20
10
20
11
20
12
20
13
20
14
Married
Partner
Single
Multi
13
b)
Note: Married couples include married with spouse absent, but not separated. Single-adult households include
single parents with no other adults living in the residence. Multi-adult households are households with more than
one adult who is not the spouse or unmarried partner of the householder (e.g., roommates or other family
members). Households with children include only those with the householders’ own natural, adopted, foster, or
step-child(ren).
Source: Tabulations of the 1995-2014 Current Population Survey.
The likely effect of these shifts in marital and family status has been to lower homeownership
rates among young adults, as married couples and parents tend to have much higher
propensities towards owning than unmarried and childless households. Indeed, recent research
suggests as much as half the decrease in young adult homeownership since 1980 is the result of
lower rates of marriage and family formation (Fisher and Gervais 2011). Lower marriage rates
among young adults also reduce the likelihood of some unmarried householders owning homes
as a result of their prior marital status, i.e., remaining homeowners following a divorce,
separation, or death of a spouse with whom they lived in an owned dwelling. Indeed, the
reduction in the share of young adults that have ever been married, from 70 percent in 1995 to
54 percent in 2014 (Figure 4b), is even more dramatic than the decline in the share of young
adults who are parents. Both of these shifts further reduce the likelihood of young adults
owning homes today relative to the past.
14
Educational Attainment
A potentially positive force on young adult homeownership rates over the last two decades has
been the growth in post-secondary educational attainment among this age group. Almost half
of all young adult-headed households now include someone with a college degree, up from 32
percent in the mid-1990s (Figure 5).4 Nearly all this growth is due to an increase in the
percentage of high school graduates who attain college degrees; the overall percentage of high
school graduates (i.e. the inverse of the share without a high-school diploma), meanwhile, has
increased only slightly..
Figure 5: Maximum Educational Attainment among Residents in Young Adult Households
Source: Tabulations of the 1995-2014 Current Population Survey.
Though the time it takes to pursue a college education may delay entry into the workforce and
the achievement of financial and residential stability associated with home purchases, young
college graduates still tend to have higher homeownership rates than their less educated peers.
4 Note that these data reflect the highest educational attainment achieved by all adults in the household, rather than
just the householder, since more education of household members tends to elevate household income, regardless of
whether it is the head that holds the degree. As a result, the share of young households with a college graduate is
larger than the share of all such graduates among the young adult population (35 percent in 2014).
0%
10%
20%
30%
40%
50%
60%
70%
19
95
19
96
19
97
19
98
19
99
20
00
20
01
20
02
20
03
20
04
20
05
20
06
20
07
20
08
20
09
20
10
20
11
20
12
20
13
20
14
College Graduate
High School
Diploma only
No High School
Diploma
15
Indeed, Gyourko and Linneman (1997) point to the increasing importance of educational
attainment in predicting homeownership outcomes for young adults, which suggests that an
increase in the share of households with college graduates should have a positive effect on the
homeownership rates of young adult households overall.
Over the last two decades, other noteworthy changes in the socio-demographic characteristics
of young adult households include small increases in the following shares: those living in central
cities, those with female household heads, and those in the bottom half of the age range (25-29
years old) (see Appendix A). All of these changes likely have a slight depressing effect on the
homeownership rates of young adults.
Econometric Analysis
Regression Models
To decompose the simultaneous effects of these shifts in socio-demographic characteristics on
young adult homeownership rates, regression analyses were run on the tenure status of
householders ages 25 to 34 controlling for their race, nativity, education, marital and family
status, central city location, income distribution, and age. An additional variable is included in
the analysis for the estimated median monthly mortgage principle and interest cost, which is
calculated from local median house prices in the year prior to the analysis and median
prevailing interest rates for a 30-year fixed rate mortgage, assuming a 10 percent down
payment.5 All of the socio-demographic characteristic variables are expressed as binary
indicators, with respondents who have a specified characteristic assigned a value of one for
that variable, and a value of zero otherwise. All categorical variables (race, marital status,
income, and education) have one characteristic excluded from the models as a reference
category (see Appendix A). While regressions with binary dependent variables are traditionally
estimated with a non-linear model, this analysis uses ordinary least squares (OLS) to facilitate
5 Local prices are the median price for the metro area (or state, if metro area is not available or identified) of the
household as reported by the National Association of Realtors® (NAR). Approximately 70-80 percent of
observations in the three years modeled for the analysis were in an identified metro area matched to NAR data.
Estimates of monthly owner costs do not include taxes or insurance payments that are often added to mortgage costs.
16
interpretation and post-estimation calculations of model coefficients.6
The regressions are performed for three separate years of weighted CPS data: 1995,
representing a period before the housing boom; 2005, at the height of the boom; and 2014,
after the worst of the housing market downturn and the most recent year for which data are
available. The coefficients represent the estimated difference in the homeownership rate for
young adult households who have each socio-demographic characteristic relative to those in
the reference category, all else equal (see Appendix B). For the local monthly mortgage cost,
the coefficient is the estimated difference in homeownership rates from a $1 increase in the
monthly cost of owning a home. As expected, in all three years modeled, the homeownership
rate is lower (i.e., coefficients are negative) for unmarried, minority, female, foreign-born, and
central city households, and higher (i.e., coefficients are positive) for higher income, higher
educated, older, parents, and previously married householders, when all other characteristics
are controlled for. The coefficients also suggest a negative relationship between the monthly
cost of owning a home and homeownership rates, as households are less likely to own when it
is more expensive to do so. In the three models, all variables were statistically significant at the
0.1 percent
level.
Looking across the three models, there are some trends in the coefficients that warrant
mention. The coefficients for marital status, for example, increased in absolute value during the
housing boom, reflecting an increasing importance of marital status differences for predicting
homeownership among young adults. The subsequent decrease in the aftermath of the boom
suggests that, in the current environment, marital status is becoming less relevant to tenure.
The opposite, however, is true of race/ethnicity, which had coefficients closer to zero (i.e.,
smaller differences in homeownership rates) during the boom; recently, these coefficients have
been rising in absolute value. The effect of income distributions on homeownership appears to
have declined consistently throughout the study period, with the exception of the coefficient
for those earning between $25,000 and $50,000 a year, which increased between 1995 and
6 The results derived from the OLS models are similar in magnitude and significance to those produced by
estimating marginal effects after a more traditional binary probit regression.
17
2005. Education, meanwhile, was associated with larger differences in homeownership rates
during the boom than before, and smaller differences currently. Metro status and nativity are
both associated with differences in home ownership rates during the boom that remained in
effect after the market turned, while being female and in the older half of the age group
became less relevant over time. Finally, the coefficients for local monthly mortgage costs
declined slightly between 1995 and 2005, suggesting a decreasing influence of higher costs as a
deterrent to homeownership at the peak of the housing boom, followed by a sharp increase in
2014. All differences in coefficients across models are statistically significant at the 5 percent
level.
A final comment on the results of the regression models concerns their explanatory power,
which is measured by the adjusted R-square as a proxy for the amount of variation in tenure
status that is explained by the variables. The combined effect of the variables included in the
models declined slightly from 0.27 in 1995 to 0.24 in 2014. This suggests that only around a
quarter of young adults’ homeownership rate is predicted by their personal characteristics and
local monthly owner costs, and that the role of other forces (e.g., attitudes towards
homeownership and macro-economic factors) has increased somewhat over time. Thus
regardless of the influence of individual socio-demographic factors, collectively these conditions
remain less relevant to homeownership than market factors and unobserved drivers of tenure
choices.
Shift-Share Analysis
An advantage of the OLS models estimated to assess socio-demographic effects on
homeownership is that the product of model coefficients and mean variable values when
summed over all independent variables in the model, plus the constant is equal to the mean
value of the dependent variable. The mean values of all independent variables in the three
models described above are shown in Appendix A. When multiplied by the coefficients in
Appendix B, the result is the mean value of the tenure choice indicator, i.e., the sample
homeownership rate. For the three years modeled in the regressions above, these
18
homeownership rates were 44.7, 49.9, and 40.1 percent, respectively.
A shift-share analysis of the three regression models offers the opportunity to examine the
effect of changes in means versus coefficients. That is, the product of the mean values in one
year and the coefficients in another allows us to separate changes in the homeownership rate
resulting from shifts in the characteristics of young adults from changes in the propensities of
each characteristic for predicting tenure status. This form of shift-share analysis is
demonstrated in Appendix C, which first applies coefficients from the 1995 model to
distributions observed in 2005, to see what the expected homeownership rate for young adults
would have been if only the mean values of the socio-demographic variables, i.e., the
proportions of the sample that exhibited each of these characteristics, changed during the
decade. The result is a homeownership rate of 40.6 percent, or 4.1 percentage points less than
the actual 1995 rate. The combined effect of shifts in socio-demographic characteristics and
changes in local monthly owner costs thus was expected to lower young adult homeownership
rates by this amount, while in reality the rate rose by 5.2 percentage points, due mostly to
favorable market and economic conditions for home buying and positive views about
homeownership.
The second shift-share applies 2005 coefficients to 2014 distributions, to estimate the effect of
changes in socio-demographic characteristics over this period on the homeownership rate of
young adults. The result of this calculation is an expected homeownership rate of 51 percent,
which is 1.1 percentage points above the observed rate of 49.9 percent as of 2005. This
expected rate is heavily influenced by the relative increase in affordability of homeownership
that occurred during this period, as house prices declined while interest rates reached historic
lows. Absent this decline in monthly mortgage costs, the expected homeownership rate based
on socio-demographic characteristics alone should have been lower than the observed rate, by
around 1.7 percentage points. This suggests less impact from socio-demographic changes in the
second decade of the study period relative to the first, a decrease that is consistent with the
slowing growth of the minority share and the slight decline in the foreign-born share among
19
young adults between 2005 and 2014. This period also saw some increase in homeownership-
positive factors, such as share of young adult households with college graduates. This analysis
also reaffirms the primary role of macro-economic and market factors on homeownership,
which at the time were considerably less conducive to home purchases among young adults,
thus lowering the actual young adult homeownership rate to 40.4 percent as of 2014.
The third shift-share calculation spans the nearly two decades covered by this analysis,
combining 1995 coefficients with 2014 distributions. The result is an expected homeownership
rate for young adults of 41.9 percent; this suggests that the combined effect of all socio-
demographic changes that occurred within the young adult population over the last nineteen
years, along with changes in local monthly owner cost estimates, should have lowered the
young adult homeownership rate by 2.8 percentage points from its 1995 level (Figure 6). This
expected rate of 41.9 percent is also slightly higher than the observed 2014 homeownership
rate of 40.1 percent, suggesting that more young adults would be owners now than actually are
if homeownership tendencies from 1995 still prevailed. This result, however, is skewed by the
relative affordability of owning today versus in the mid-1990s. Subtracting out the positive 2.2
percentage point influence of local monthly owner costs, the socio-demographic effect alone
should have lowered young adult homeownership rates by 5 percentage points, bringing it
nearly in line with its current level.
20
Figure 6: Actual vs. Expected Homeownership Rates of Young Adults, 1995-2014
Note: Expected homeownership rates (i.e., the first and third shift-share calculations in Appendix C) are the
product of 1995 regression model coefficients and distributions of young adult characteristics (i.e., mean values of
binary variables) in indicated years, summed over all characteristics in the model, plus the constant term.
The shift-share analysis further allows for the decomposition of differences between expected
and actual homeownership rates according to the variables included in the models. To isolate
the effect of changes in a particular socio-demographic characteristic, the product of the
distribution and coefficient for a given variable in one year is subtracted from the product of
the same coefficient and the distribution for that variable in a later year. In the first shift-share
analysis, for example, holding coefficients constant at 1995 estimates shows that over a third of
the expected 4.2 percentage point decrease in the homeownership rate between 1995 and
2005 was due to changes in local monthly mortgage costs, while much of the remaining decline
was attributable to shifts between these years in the racial/ethnic and nativity status of young
adults, which each contributed about six-tenths of a percentage point to that decrease.
Changes in marital and living statuses of young adults over this period, including the increase in
never-married householders, added an additional percentage point to the expected decline,
while the increase in higher income young adult households actually added 1.2 percentage
35%
40%
45%
50%
55%
1995 2005 2014
Observed
homeownership rate of
young adults
Expected HO rate based
on 1995 coefficients
21
points to the expected homeownership rate (Figure 7a).
The second shift-share calculation shows that changes in estimated monthly mortgage costs
were wholly responsible for expected increases in homeownership rates between 2005 and
2014; absent these dramatic swings in house prices and interest rates, shifts in socio-
demographic characteristics would have lowered homeownership rates. The most important
factors in the expected demographically-induced decline were shifts in marital and living
statuses, as the decrease in the share of married households accelerated during the housing
downturn and recession (Figure 7b). Growth in the share of lower income households also
placed downward pressure on homeownership during this period. Small changes in the
racial/ethnic and nativity distributions of young adults, meanwhile, had only a negligible effect,
while changes in educational attainment among young adults were actually expected to
increase homeownership by over one-half a percentage point. For the whole nineteen-year
period (i.e., the third shift-share calculation), marital status shifts were still the largest socio-
demographic driver of expected homeownership changes between 1995 and 2014 (Figure 7c).
Race and nativity combined added another 1.1 percentage points to the expected decline,
while higher shares of young adults living in center cities contributed 0.7 percentage points.
22
Figure 7: Variable Contributions to Expected Decline in the Homeownership Rate of Young
Adults, 1995-2014
a)
b)
c)
23
These results make clear several important facts about the role of socio-demographic factors in
shaping recent homeownership rates among young adults. First, absent the dramatic swings in
housing markets and macro-economic conditions, we would have expected young adult
homeownership rates to be similar to what they actually are. Most of that decline, moreover,
would have occurred during the 1990s and early 2000s, when the racial/ethnic, nativity,
gender, and age distribution of householders age 25 to 34 were shifting more rapidly. Second,
the additional decline that was expected to take place after 2005 was mostly driven by changes
in the marital status and living arrangements of young adults, which were themselves
potentially influenced by the declining economy of that period. Third, however, given the low
R-square values of the regression analysis, and the actual rise and fall in homeownership rates
for young adults over the last twenty years, it is clear that personal characteristics play a
somewhat limited role in determining the tenure status of young households. In contrast,
market factors account for around three-quarters of the variation in observed tenure status,
with that share growing slightly over the period examined in this analysis.
Discussion and Implications
The analysis above reveals informative details about the drivers of tenure choices among young
adults over the past two decades, and in particular about the effects of demographic changes in
this population. It does not, however, provide insight into the future tenure status of young
households. Such a prediction would require estimates of the number and composition of
young adult households going forward. The Joint Center for Housing Studies (JCHS) recently
revised their household projections using current Census population projections (McCue 2014).
According to their calculations, the number of households with heads ages 25 to 34 is expected
to increase by 1 million between 2015 and 2035. The JCHS projections further segment
expected change in households by race and marital/family composition, using estimates of the
existing population by age and race, expected immigration flows, and current rates of marriage
and childbearing. These estimates thus make some assumptions about future trends in socio-
demographic characteristics of young adults that do not consider the effects of potential
24
economic conditions or other external shocks on the composition of households. Still, these
projections offer some basis for discussing how further changes in socio-demographic
characteristics of young adults may impact their homeownership rates.
All of the projected growth in young adult households, according to the JCHS calculations, is
expected to be among minority heads, who will increase their share of all young households to
fully 50 percent by 2035 (McCue 2014). This ten percentage point shift in the racial/ethnic
distribution of young adult households over a twenty year period reflects a continuation of the
trends observed over the past two decades, which, as the analysis above shows, contributed
over a full percentage point to declines in the young adult homeownership rate. That decline,
however, was calculated after taking into account changes in the marital, educational, income,
and locational distributions of young adults, which are also affected by the minority share of
households. Specifically, increases in the minority share of young adult households are likely to
further decrease the share of these households comprised of married couples, those having
college educations, and those living outside central cities; all of these decreases in turn place
further downward pressure on the homeownership rate of this population. The full impact of
higher minority shares on young adult homeownership rates is therefore difficult to foresee,
and may actually be even greater than one percentage point.
It is important to note that these projections are based on recent estimates of headship rates
for young adults, i.e., the share of individuals heading their own household, which may not
remain at their current level going forward. A rise in the headship rate could occur if the
economy, and particularly the job prospects for young adults, improves greatly in the near
future. The JCHS’s projections also do not account for other socio-demographic trends known
to influence homeownership rates, such as the gender distribution of householders, the
increasing appeal of urban living, and higher educational attainment among young adults. Any
distributional changes in these socio-demographic characteristics of young adults will have
further implications for their homeownership rates.
25
With continued socio-demographic changes likely to have further depressing effects on
homeownership rates among young adult households, it will be up to the economy and housing
markets to offer countervailing forces to encourage young adults to buy homes. As the analysis
in this paper shows, the effect of favorable mortgage terms, affordable housing costs, and
increases in income can be stronger drivers of tenure outcomes than socio-demographic
characteristics, as evidenced during the housing boom. When both characteristics and
economic conditions are less favorable to home purchases, however, young adult
homeownership rates can fall precipitously, as happened after the collapse of the housing
market in 2005.
Conclusion
The dramatic rise and fall in young adult homeownership rates observed over the past two
decades has largely been a function of economic and market conditions, with a smaller role
played by changing socio-demographic characteristics. Indeed, increases in the shares of young
adult households that are minority, unmarried, and living in center cities should have lowered
their homeownership rate during the 1990s and early 2000s; instead, favorable lending
conditions and enthusiasm for homeownership increased the homeownership rate among
householders ages 25 to 34. In the subsequent decade, after the peak of the housing boom, the
homeownership rate for this group fell precipitously, even as changes in their demographic
characteristics moderated relative to the prior decade.
Among the characteristics shown by this study to have the greatest effect on young adult
homeownership rates, the decline in the share of married couples (both currently and formerly
married) had the largest impact, accounting for 40 percent of the expected change in
homeownership due to socio-demographic shifts. Most of this effect occurred during the
downturn, when economic conditions may have themselves been inhibiting marriages and
family formation. Changes in the race and nativity of young adults, meanwhile, have slowed in
recent years, reducing the effect of these factors on homeownership. The future of these
trends is uncertain, but if recent experience is any guide, they will continue to place downward
26
pressure on young adult homeownership rates in the near term.
27
Appendix A: Mean Values of Variables used in Regression Analysis
1995 2005 2014
Number of households (000s) 19,474 19,331 20,033
Marital/ Living Status
Married Couple* 0.530 0.494 0.423
Partnered Couple 0.054 0.088 0.129
Single Adult 0.308 0.312 0.326
Multi Adult 0.108 0.106 0.123
Race/ Ethnicity
Non-Hispanic White* 0.716 0.621 0.598
Non-Hispanic Black 0.136 0.137 0.131
Hispanic 0.115 0.171 0.181
Non-Hispanic Other 0.033 0.071 0.089
Income Categories
(2014$)
Under $25,000* 0.214 0.183 0.221
$25,000-$50,000 0.274 0.275 0.256
$50,000-$75,000 0.229 0.214 0.196
$75,000 or more 0.283 0.327 0.327
Max Educational
Attainment in
Household
No Degree* 0.082 0.083 0.059
High-School Degree 0.598 0.524 0.483
College Degree 0.321 0.393 0.458
Presence of Children
in Household
No* 0.446 0.459 0.478
Yes 0.554 0.541 0.523
Gender
Male* 0.635 0.517 0.509
Female 0.365 0.483 0.491
Age Category 25-29 years old* 0.432 0.475 0.468
30-34 years old 0.568 0.525 0.533
Metro Status Non-Central City* 0.723 0.677 0.651
Central City 0.277 0.323 0.349
Prior Marital Status
Never Married* 0.308 0.377 0.465
Ever Married 0.693 0.623 0.535
Nativity Native-born* 0.879 0.809 0.824
Foreign-born 0.121 0.191 0.176
Local Monthly Owner Cost (2014$) $1,235 $1,432 $953
Homeownership Rate (Dependent Variable) 44.7% 49.9% 40.1%
Notes: Counts and distributions are calculated using weighted CPS data. Variables indicated
with an asterisk (*) are designated reference categories and thus excluded from the regression
analyses.
28
Appendix B: Results of Regression Analyses on Tenure Status for Young Adult Households
1995 2005 2014
Number of Observations (unweighted) 11,122 13,479 8,761
Marital/ Living Status
Married Couple* – – –
Partnered Couple -0.180 -0.218 -0.176
Single Adult -0.132 -0.184 -0.131
Multi Adult -0.155 -0.165 -0.124
Race/ Ethnicity
Non-Hispanic White* – – –
Non-Hispanic Black -0.152 -0.091 -0.133
Hispanic -0.078 -0.021 -0.025
Non-Hispanic Other -0.033 -0.044 -0.008
Income Categories
(2014$)
Under $25,000* – – –
$25,000-$50,000 0.092 0.100 0.091
$50,000-$75,000 0.232 0.216 0.183
$75,000 or more 0.352 0.334 0.306
Max Educational
Attainment in
Household
No Degree* – – –
High-School Degree 0.048 0.069 0.009
College Degree 0.034 0.132 0.072
Presence of Children
in Household
No* – – –
Yes 0.068 0.037 0.089
Gender
Male* – – –
Female -0.040 -0.008 -0.017
Age Category 25-29 years old* – – –
30-34 years old 0.118 0.106 0.067
Metro Status Non-Central City* – – –
Central City -0.096 -0.125 -0.123
Prior Marital Status
Never Married* – – –
Ever Married 0.053 0.012 0.017
Nativity Native-born* – – –
Foreign-born -0.088 -0.109 -0.111
Local Monthly Owner Cost (2014$) -0.00008 -0.00006 -0.00012
Constant 0.334 0.408 0.405
Adjusted R-Square 0.2684 0.2613 0.2372
Note: The models were all run using weighted data. All regression coefficients are statistically
significant at the 0.1 percent level. Variables indicated with an asterisk (*) are designated
reference categories and thus excluded from the regression analyses.
29
Appendix C: Shift-Share Analysis of Regression Results on Tenure Status for Young Adult Households
Shift 1: 1995-2005 Shift 2: 2005-2014 Shift 3:1995-2014
Coef95 x
Mean05
Diff.
from
1995
Total
Percentage
Point Diff.
Coef05 x
Mean14
Diff. from
2005
Total
Percentage
Point Diff.
Coef95 x
Mean14
Diff. from
1995
Total
Percentage
Point Diff.
Marital/ Living Status
Married Couple*
0.0000 0.0000
-0.63%
0.0000 0.0000
-1.43%
0.0000 0.0000
-1.81%
Partnered Couple -0.0158 -0.0061 -0.0281 -0.0089 -0.0232 -0.0134
Single Adult -0.0410 -0.0005 -0.0601 -0.0026 -0.0429 -0.0023
Multi Adult -0.0165 0.0002 -0.0203 -0.0027 -0.0190 -0.0024
Race/ Ethnicity
Non-Hispanic White* 0.0000 0.0000
-0.57%
0.0000 0.0000
-0.05%
0.0000 0.0000
-0.62%
Non-Hispanic Black -0.0208 -0.0001 -0.0120 0.0005 -0.0200 0.0007
Hispanic -0.0133 -0.0044 -0.0038 -0.0002 -0.0141 -0.0051
Non-Hispanic Other -0.0023 -0.0012 -0.0039 -0.0008 -0.0029 -0.0018
Income Categories (2014$)
Under $25,000* 0.0000 0.0000
1.22%
0.0000 0.0000
-0.58%
0.0000 0.0000
0.62%
$25,000-$50,000 0.0253 0.0001 0.0255 -0.0019 0.0236 -0.0017
$50,000-$75,000 0.0497 -0.0034 0.0424 -0.0039 0.0455 -0.0076
$75,000 or more 0.1151 0.0155 0.1093 0.0000 0.1151 0.0155
Max Educational Attainment
in Household
No Degree* 0.0000 0.0000
-0.11%
0.0000 0.0000
0.57%
0.0000 0.0000
-0.09%
High School Degree 0.0251 -0.0035 0.0333 -0.0028 0.0231 -0.0055
College Degree 0.0132 0.0024 0.0605 0.0086 0.0154 0.0046
Presence of Children in
Household
No* 0.0000 0.0000
-0.09%
0.0000 0.0000
-0.07%
0.0000 0.0000
-0.22% Yes 0.0367 -0.0009 0.0192 -0.0007 0.0355 -0.0022
Gender
Male* 0.0000 0.0000
-0.47%
0.0000 0.0000
-0.01%
0.0000 0.0000
-0.50% Female -0.0192 -0.0047 -0.0041 -0.0001 -0.0195 -0.0050
Age Category
25-29 years old* 0.0000 0.0000
-0.51%
0.0000 0.0000
0.08%
0.0000 0.0000
-0.42% 30-34 years old 0.0619 -0.0051 0.0562 0.0008 0.0628 -0.0042
Metro Status
Non-Central City* 0.0000 0.0000
-0.44%
0.0000 0.0000
-0.33%
0.0000 0.0000
-0.69% Central City -0.0310 -0.0044 -0.0437 -0.0033 -0.0336 -0.0069
Prior Marital Status
Never Married* 0.0000 0.0000
-0.37%
0.0000 0.0000
-0.11%
0.0000 0.0000
-0.84% Ever Married 0.0330 -0.0037 0.0065 -0.0011 0.0283 -0.0084
Nativity
Native-born* 0.0000 0.0000
-0.62%
0.0000 0.0000
0.16%
0.0000 0.0000
-0.49% Foreign-born -0.0169 -0.0062 -0.0191 0.0016 -0.0156 -0.0049
Local Monthly Owner Cost (2014$) -0.1112 -0.0152 -1.52% -0.0565 0.0284 2.84% -0.0740 0.0220 2.20%
Constant 0.3345 0.0000 0.4085 0.0000 0.3345 0.0000
Expected Homeownership Rate 40.6% -4.1% 51.0% 1.1% 41.9% -2.9%
30
References
Carliner, G. 1974. Determinants of homeownership. Land Economics 50, no. 2: 110-19.
Cherlin, A., Cumberworth, E., Morgan, S. P., and Wimer, C. 2013. The effects of the great
recession on family structure and fertility. The ANNALS of the American Academy of
Political and Social Science 650, no. 1: 214-31.
Clark, W.A.V., and Davies Withers, S. 2007. Family migration and mobility sequences in the
United States: Spatial mobility in the context of the life course. Demographic Research
17, no. 20: 591-622.
Clark, W. A. V., Deurloo, M. C., and Dieleman, F. M. 1994. Tenure changes in the context of
micro-level family and macro-level economic shifts. Urban Studies 31, no. 1: 137-54.
Clark, W. A. V., Deurloo, M. C., and Dieleman, F. M. 2003. Housing careers in the United States:
Modeling the sequencing of housing states. Urban Studies 40, no. 1: 143-60.
Clark, W. A. V., and Dieleman, F. M. 1996. Households and housing: Choice and outcomes in the
housing market. New Brunswick, NJ: Center for Urban Policy Research, Rutgers
University.
Clark, W. A. V., and Huang, Y. 2003. The life course and residential mobility in British housing
markets. Environment and Planning A 35: 323–39.
Coulson, N. E. 1999. Why are Hispanic and Asian American homeownership rates so low?
Immigration and other factors. Journal of Urban Economics 45, no. 2: 209-27.
Demand Institute. 2014. Millennials and their homes: Still seeking the American Dream. New
York: Demand Institute.
Di, Z. X., and Liu, X. 2007. The importance of wealth and income in the transition to
homeownership. Cityscape 9, no. 2: 137-52.
Drew, R. B. 2002. New Americans, new homeowners: The role and relevance of foreign-born
first-time homebuyers in the U.S. housing market. Research Note N02-2. Cambridge,
MA: Joint Center for Housing Studies, Harvard University.
Drew, R. B. 2014. Three facts about marriage and homeownership. Housing perspectives (Joint
Center for Housing Studies blog), December 17
(http://housingperspectives.blogspot.com/2014/12/3-facts-about-marriage-and-
homeownership.html).
31
Fisher, J. D. M., and Gervais, M. 2011. Why has homeownership fallen among the young?
International Economic Review 52, no. 3: 883-912.
Fry, R. 2013. Young adults after the recession: Fewer homes, fewer cars, less debt. Washington:
Pew Research Center.
Gabriel, S. A., and Rosenthal, S. S. Forthcoming. The boom, the bust, and the future of
homeownership. Real Estate Economics (pre-publication version available at
http://ssrn.com/abstract=2323889).
.
Grinstein-Weiss, M., Charles, P., Guo, S., Manturuk, K., and Key, C. 2011. The effect of marital
status on home ownership among low-income households. Social Service Review 85, no.
3: 475-503.
Gyourko, J., and Linneman, P. 1997. Analysis of the changing influences on traditional
households’ ownership patterns. Journal of Urban Economics 39, no. 3: 318-41.
Haurin, D. R., Hendershott, P. H., and Kim, D. 1994. Housing choices of American youth. Journal
of Urban Economics 35, no. 1: 28–45.
Haurin, D. R., Hendershott, P. H., and Wachter, S. 1996. Wealth accumulation and housing
choices of young households: An exploratory investigation. Journal of Housing Research
7, no. 1: 33-57.
Haurin, D. R., Hendershott, P. H., and Wachter, S. 1997. Borrowing constraints and the tenure
choice of young households. Journal of Housing Research 8, no. 2: 137-54.
Haurin, D. R., Herbert, C. E., and Rosenthal, S. S. 2007. Homeownership gaps among low-income
and minority households. Cityscape 9, no. 2: 5–51.
Haurin, D. R., and Rosenthal, S. S. 2009. Language, agglomeration, and Hispanic
homeownership. Real Estate Economics 37, no. 2: 155-183.
Hendershott, P. H., Ong, R., Wood, G. A., and Flatau, P. 2009. Marital history and home
ownership: Evidence from Australia. Journal of Housing Economics 18, no. 1: 13-24.
Henderson, J. V., and Ioannides, Y. M. 1983. A model of housing tenure choice. American
Economic Review 73, no. 1: 98-113.
Herbert, C. E., Haurin, D. R., Rosenthal, S. S., and Duda, M. 2005. Homeownership gaps among
low income and minority borrowers and neighborhoods. Washington: U.S. Department
of Housing and Urban Development.
Ioannides, Y. M., and Rosenthal, S. S. 1994. Estimating the consumption and investment
32
demands for housing and their effect on housing tenure status. Review of Economics
and Statistics 76, no. 1: 127–41.
Jansen, S. J. T., Coolen, H., and Goetgeluk, R. W. 2011. Measurement and analysis of housing
preference and choices. New York: Springer.
Masnick, G. S., and Di, Z. X. 2001. Cohort insights into the influence of education, race and
family structure on homeownership trends by age: 1985 to 1995. Research Note N01-1.
Cambridge, MA: Joint Center for Housing Studies, Harvard University.
McCue, D. 2014. Baseline household projections for the next decade and beyond. Working
Paper 14-1. Cambridge, MA: Joint Center for Housing Studies, Harvard University.
Megbolugbe, I. F., Marks, A. P., and Schwartz, M. B. 1991. The economic theory of housing
demand: A critical review. Journal of Real Estate Research 6, no. 3: 381-93.
Myers, D., Megbolugbe, I., and Lee, S. 1998. Cohort estimation of homeownership attainment
among native-born and immigrant populations. Journal of Housing Research 9, no. 2:
237-69.
Nelson, A. C. 2013. Reshaping metropolitan America: Development trends and opportunities to
2030. Washington: Island Press.
Ortalo-Magné, F., and Rady, S. 2002. Tenure choice and the riskiness of non-housing
consumption. Journal of Housing Economics 11, no. 3: 266-79.
Painter, G., Gabriel, S. A., and Myers, D. 2001. Race, immigrant status, and housing tenure
choice. Journal of Urban Economics 49: 150-67.
Rosenbaum, E., and Friedman, S. 2004. Generational patterns in home ownership and housing
quality among racial/ethnic groups in New York City, 1999. International Migration
Review 38, no. 4: 1492-533.
Schwartz, A. F. 2013. Housing policy in the United States: An introduction. 3rd ed. New York:
Routledge.
Sinai, T., and Souleles, N. S. 2005. Owner-occupied housing as a hedge against rent risk. The
Quarterly Journal of Economics 120, no. 2: 763-89.
Timmermans, H., Molin, E., and van Noortwijk, L. 1994. Housing choice processes: Stated versus
revealed modeling approaches. Netherlands Journal of Housing and the Built
Environment 9, no. 3: 215-27.
33
U.S. Census Bureau 2012. The baby boom cohort in the United States: 2012 to 2060 –
population estimates and projections. Current Population Reports P25-1141.
Washington.
U.S. Census Bureau 2014. Housing vacancy survey, third quarter. Washington.
Wachter, S. M., and Megbolugbe, I. F. 1992. Racial and ethnic disparities in homeownership.
Housing Policy Debate 3, no. 2: 333-70.
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