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John Eric Humphries
I am an assistant professor in economics at Yale University.
My research combines economics and econometrics methods with large administrative data to inform policy. My work focuses largely on education and housing. In education, my work focuses on understanding human capital investments, measuring the returns to investments, the role of non-cognitive skills, and how educational and career dynamics are affected by public policy. In housing, my work focuses on quantifying the prevalence and impact of evictions, and on evaluating policies designed to benefit low-income renters and prevent homelessness. My CV is available here.
I am an NBER Faculty Research Fellow (Labor Studies and Economics of Education), member of the Human Capital and Economic Opportunity "Inequality: Measurement, Interpretation, and Policy" working group (MIP), an affiliate of the CESifo Research Network, and an affiliate of the Inclusive Economy Lab. I grew up in Eagle River, Alaska and enjoy backpacking, cross-country skiing, and blues guitar.My office is room B335 in 87 Trumbull St. and I can be contacted at [email protected].
Yale undergraduates interested in working as a research assistant, see instructions here.Selected Publications and Working Papers
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WP 2024
John Eric Humphries, Christopher Neilson, Xiaoyang Ye, Seth Zimmerman
This paper asks whether universal pre-kindergarten (UPK) raises parents’ earnings and how much these earnings effects matter for evaluating the economic returns to UPK programs. Using a randomized lottery design, we estimate the effects of enrolling in a full-day UPK program in New Haven, Connecticut on parents’ labor market outcomes as well as educational expenditures and children’s academic performance. During children’s pre-kindergarten years, UPK enrollment increases weekly childcare coverage by 11 hours. Enrollment has limited impacts on children’s academic outcomes between kindergarten and 8th grade, likely due to a combination of rapid effect fadeout and substitution away from other programs of similar quality but with shorter days. In contrast, parents work more hours, and their earnings increase by 21.7%. Parents’ earnings gains persist for at least six years after the end of pre-kindergarten. Excluding impacts on children, each dollar of net government expenditure yields $5.51 in after-tax benefits for families, almost entirely from parents’ earnings gains. This return is large compared to other labor market policies. Conversely, excluding earnings gains for parents, each dollar of net government expenditure yields only $0.46 to $1.32 in benefits, lower than many other education and children’s health interventions. We conclude that the economic returns to investing in UPK are high, largely because of full-day UPK’s effectiveness as an active labor market policy.
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WP 2024
John Eric Humphries, Aurelie Ouss, Megan Stevenson, Kamelia Stavreva, Winnie van Dijk
Noncarceral conviction is a common outcome of criminal court cases: for every individual incarcerated, there are approximately three who are recently convicted but not sentenced to prison or jail. We develop an empirical framework for studying the consequences of noncarceral conviction by extending the binary-treatment judge IV framework to settings with multiple treatments. We outline assumptions under which widely-used 2SLS regressions recover margin-specific treatment effects, relate these assumptions to models of judge decision-making, and derive an expression that provides intuition about the direction and magnitude of asymptotic bias when they are not met. Under the identifying assumptions, we find that noncarceral conviction (relative to dismissal) leads to a large and long-lasting increase in recidivism for felony defendants in Virginia. In contrast, incarceration relative to noncarceral conviction leads to a short-run reduction in recidivism, consistent with incapacitation. While the identifying assumptions include a strong restriction on judge decision-making, we argue that any bias resulting from its failure is unlikely to change our qualitative conclusions. Lastly, we introduce an alternative empirical strategy, and find that it yields similar estimates. Collectively, these results suggest that noncarceral felony conviction is an important and potentially overlooked driver of recidivism.
[Condtionally accepted at the Quarterly Journal of Economics]
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AEA P&P 2024
John Eric Humphries, Juanna Schroter Joensen, and Gregory F. Veramendi
There is a large gender wage gap among college graduates. This gender gap could be partially driven by differences in college major and prior skills. We use Swedish register data to study how much of the gender gap can be explained by differences in majors, skills, and skill prices. College majors explain 60 percent of the gender wage gap, but large gaps remain within majors. We find that within-major wage gaps are driven by neither differences in multidimensional skills nor returns to these skills. In fact, women are positively selected in terms of college preparation and skills in almost every major. -
QJE 2023
Robert Collinson, John Eric Humphries, Nicholas Mader, Davin Reed, Daniel Tannenbaum, Winnie van Dijk
More than two million U.S. households have an eviction case filed against them each year. Policymakers at the federal, state, and local levels are increasingly pursuing policies to reduce the number of evictions, citing harm to tenants and high public expenditures related to homelessness. We study the consequences of eviction for tenants using newly linked administrative data from two major urban areas: Cook County (which includes Chicago) and New York City. We document that prior to housing court, tenants experience declines in earnings and employment and increases in financial distress and hospital visits. These pre-trends pose a challenge for disentangling correlation and causation. To address this problem, we use an instrumental variables approach based on cases randomly assigned to judges of varying leniency. We find that an eviction order increases homelessness and hospital visits and reduces earnings, durable goods consumption, and access to credit in the first two years. Effects on housing and labor market outcomes are driven by impacts for female and Black tenants. In the longer-run, eviction increases indebtedness and reduces credit scores. -
JDE 2022
Maria Elena Guerrero-Amezaga, John Eric Humphries, Christopher A. Neilson, Naomi Shimberg, and Gabriel Ulyssea
This paper studies the effects of the COVID-19 pandemic on small businesses between March and November 2020 using new survey data on 35,000 small businesses in eight Latin American countries. We document that the pandemic had large negative impacts on employment and beliefs regarding the future, which in turn predict meaningful economic outcomes in the medium-term. Despite the unprecedented amount of aid, policies had limited impact for small and informal firms. These firms were less aware of programs, applied less, and received less assistance. This may have lasting consequences, as businesses that received aid reported better outcomes and expectations about the future. -
JPubE 2020
John Eric Humphries, Christopher A. Neilson, and Gabriel Ulyssea.
The Paycheck Protection Program (PPP) extended 669 billion dollars of forgivable loans in an unprecedented effort to support small businesses affected by the COVID-19 crisis. This paper provides evidence that information frictions and the "first-come, first-served" design of the PPP program skewed its resources towards larger firms and may have permanently reduced its effectiveness. Using new daily survey data on small businesses in the U.S., we show that the smallest businesses were less aware of the PPP and less likely to apply. If they did apply, the smallest businesses applied later, faced longer processing times, and were less likely to have their application approved. These frictions may have mattered, as businesses that received aid report fewer layoffs, higher employment, and improved expectations about the future. -
JPE 2018
James J. Heckman, John Eric Humphries,and Gregory Veramendi, published in the Journal of Political Economy, 2018.
This paper estimates returns to education using a dynamic model of educational choice that synthesizes approaches in the structural dynamic discrete choice literature with approaches used in the reduced form treatment effect literature. It is an empirically robust middle ground between the two approaches which estimates economically interpretable and policy-relevant dynamic treatment effects that account for heterogeneity in cognitive and non-cognitive skills and the continuation values of educational choices. Graduating college is not a wise choice for all. Ability bias is a major component of observed educational differentials. For some, there are substantial causal effects of education at all stages of schooling.