This study examines the labor market effects of eliminating Section 14(c) subminimum wage employment laws for people with disabilities in the United States. We construct a novel panel dataset combining the universe of Department of Labor Section 14(c) administrative records (2015–2024) with individual-level data from the Current Population Survey (2009–2024). Exploiting the staggered elimination of Section 14(c) across fifteen states, we employ event-study and difference-in-differences designs to identify dynamic treatment effects. We find that elimination policies reduce formal subminimum wage employment by approximately 2000 workers per state within two years. Importantly, we find no statistically significant reductions in overall employment rates, competitive integrated employment, or hours worked among workers with disabilities. Estimates suggest economically meaningful reductions in welfare income receipt. These findings indicate that subminimum wage abolition achieves its intended policy objective by eliminating formal sheltered employment without imposing the adverse employment effects that critics of minimum wage policies predict. Our results inform ongoing federal deliberations over phasing out the Section 14(c) program.
This paper examines the effects of oil and gas production on infant health using birth records from 1990 to 2020. We focus on the rise of unconventional extraction methods—particularly hydraulic fracturing (“fracking”)—as a quasi-exogenous shock to local production. Exploiting the staggered discovery of fracking potential across shale counties, coupled with measures of production potential as identifying variation, we implement a difference-in-differences design to estimate the impact of drilling exposure on birth outcomes. We find that exposure to drilling activity significantly reduces birth weight, increases the incidence of low birth weight and preterm birth, and impairs fetal growth. Linking drilling to changes in local ambient pollution, we show that exposure significantly increases concentrations of ozone, PM2.5, PM10, and SO2—pollutants known to affect fetal development. These environmental changes likely contribute to the observed negative effects on infant health. Our findings offer insights into the broader costs and benefits of oil and gas extraction for local communities.
Previous research documented that midwifery service quality improvements lead to improving maternal and infants’ health outcomes. However, little is known about its influence for later-life outcomes including disability. This paper explores the potential effects of early-life exposure to the establishment of midwifery laws across US states on later-life disability outcomes. Midwifery laws were enacted during the late 19th and early 20th century and required midwives to gain formal education and training to obtain a license in order to legally practice. We use decennial census data over the years 1970–2000 and implement a difference-in-difference method and show that being born in a reform state is associated with significant reductions in various measures of disability, including work disability, cognitive difficulty, ambulatory difficulty, self-care difficulty, and a proxy for severe mental health. We also find significant increases in education, socioeconomic scores, housing wealth, and income. We further discuss the policy implications of the results.
This study examines the relationship between testing accommodations, universal design (UD) features, and standardized test performance within a digital testing framework. Utilizing a novel dataset—the National Assessment of Educational Progress (NAEP) process data—and advanced statistical methodologies such as inverse probability weighting and doubly robust models, we provide compelling evidence on the utility of specific accommodations and UD features. Extended time usage is associated with improved test performance for students with disabilities, emphasizing the crucial role it plays in fostering equitable testing conditions. While scratchwork is associated with improved test performance for students with disabilities, the associations between text-to-speech and equation editors and student performance are mixed, suggesting that these features may act as potential distractions rather than support for some students.
Prior research has found that
a high level of residential racial segregation, or the degree to which racial/ethnic groups are isolated from one another, is associated with worsened infant health outcomes, particularly among non-Hispanic (NH) Black infant populations. However, because exposure to segregation is non-random, it is unclear whether and to what extent segregation is causally linked to infant health. To overcome this empirical limitation, we leverage exogenous variation in the placement of railroad tracks in the 19th century to predict contemporary segregation, an approach first introduced by Ananat (2011). In alignment with prior literature, we find that residential segregation has statistically significant associations with negative birth outcomes among Black infant populations in the area. Using OLS methods underestimates the negative impacts of segregation on infant health. We fail to detect comparable effects on health outcomes among NH White infant populations. Further, we identify several key mechanisms by which residential segregation could influence health outcomes among Black infant populations, including lower access to prenatal care during the first trimester, higher levels of anti-Black prejudice, greater transportation barriers, and increased food insecurity. Given that poor birth outcomes have adverse effects on adults’ health and well-being, the findings suggest that in-utero exposure to residential segregation could have important implications for Black–White inequality over the life course.
This paper studies the effects of Secure Communities (SC), a wide-ranging immigration enforcement program, on infant health outcomes in the United States. Using administrative birth certificate data together with event study and triple-differences designs, I find that SC increases the incidence of very low birth weight by 21% for infants of foreign-born Hispanic mothers, who were most likely to be affected by immigration enforcement. There is suggestive evidence that the results are consistent with (i) changes in maternal stress induced by deportation fear and (ii) inadequate prenatal nutrition. A back-of-the-envelope calculation suggests that this unintended social cost of immigration enforcement ranges from $872 million to $1.59 billion annually.
Prior research provides evidence of implicit and explicit anti-Black prejudice among US physicians. However, we know little about racialized prejudice among physicians and non-physician healthcare workers. Using ordinary least squares models and data from Harvard’s Project Implicit (2007-2019), we assessed the associations between self-reported occupational status (physician, non-physician healthcare worker) and implicit and explicit prejudice toward Black, Arab-Muslim, Asian, and Native Americans, net of demographic characteristics. We found that physicians and non-physician healthcare workers exhibited more implicit and explicit anti-Black and anti-Arab-Muslim prejudice than the general population. After controlling for demographics, these differences became non-significant for physicians but remained for non-physician healthcare workers. Demographic controls largely explained anti-Asian prejudice among both groups and, physicians and non-physician healthcare workers exhibited comparatively lower and similar levels of anti-Native implicit prejudice, respectively. Finally, white non-physician healthcare workers exhibited the highest levels of anti-Black prejudice.
This study assessed a broad array of socioeconomic barriers in relation to preferred contraceptive use during a time of exacerbated personal and social financial strain (the COVID-19 pandemic). Using statewide data collected in early 2021 through the Survey of the Health of Wisconsin, we conducted bivariate analyses exploring the relationship between socioeconomic resources and preferred contraceptive use among Wisconsin women. Findings indicated that people lacking socioeconomic resources, including adequate food and housing, may be unable to access their preferred contraceptive method(s). Amidst competing demands on time and resources, the inability to obtain preferred contraceptive method(s) may represent system-wide barriers as well as people's lowered ability to prioritize and access care in light of socioeconomic struggles.
This paper examines long-term health impacts of abortion legalization on cohorts born during the time in the early 1970s in the United States. While prior research highlights the short-term benefits of legal abortion on maternal and infant health, such as reduced mortality and improved infant health outcomes, this study investigates whether these benefits extend into later life. Leveraging variation in the timing of abortion legalization across states and the complete set of death records, we find that birth cohorts gestating under legal abortion reforms experience significant reductions in cumulative mortality and disability in adulthood. Our analysis of the mechanisms suggests that improved maternal and infant health, along with compositional changes in the characteristics of mothers giving birth, may explain these lasting health improvements.
We examine the multigenerational impacts of legalized abortion in the United States by analyzing how early-life exposure to this policy shift affects birth outcomes in the next generation. Using event study and two-way fixed effects models, we link maternal early-life exposure to legal abortion with improved birth outcomes in the subsequent generation, including higher birth weights and reduced rates of low birth weight. Our analysis of the mechanisms shows that these improvements in birth outcomes are not driven by changes in maternal racial or age composition within the treated generation. Instead, enhanced educational attainment and increased prenatal care utilization among the treated generation appear to play a critical role. Our results highlight the far-reaching implications of reproductive health policies, especially relevant in the post-Dobbs era, where access may once again become constrained for many.
Rethinking Rigor: High School Coursework and the Path to Postsecondary Success with Burhan Ogut and
Michelle Yin,
Revision requested, Educational Policy
This study investigates whether rigorous coursework benefits all students or mainly those with strong preparation and motivation. Using nationally representative HSLS:09 data, we find that coursework intensity is associated with greater college enrollment, selective college attendance, and STEM major selection. These gains extend to students with lower academic performance, lower motivation, and disabilities. Low-SES students experience larger college attendance gains, while high-SES students benefit more in selective admissions and STEM fields. Gender differences show higher selective college enrollment for females and greater STEM participation for males. Racial disparities persist, but coursework intensity is positively linked to postsecondary success across groups.
This study explores the long-term health effects of prenatal exposure to racialized violence by analyzing Social Security Administration death records linked with the 1940 census. We exploit variations in lynching incidences to understand their impact on old-age longevity. The results reveal a 3.7 month decrease in longevity for Black males who were exposed to a lynching of a Black victim during gestation. This exposure accounts for approximately 10% of the life expectancy gap between Black and White men in 1980, without negative effects observed among White individuals. Further analysis suggests reductions in socioeconomic measures are likely explanatory factors.
Non-Pharmaceutical Interventions (NPIs) remain a subject of intense debate during major pandemics and endemics, with studies highlighting varied benefits and costs. Yet, little is known about the long-term effects of NPIs, particularly among those exposed during early life and childhood. This study examines the long-term effects of early-life and childhood exposure to NPIs implemented during the 1918-1919 influenza pandemic on later-life longevity. Utilizing Social Security Administration death records linked to the 1940 census, we investigate the differences in longevity of cohorts exposed to the pandemic during early childhood compared to those born post-pandemic, in cities with stricter NPIs to those with less stringent measures. The findings suggest a reduction in longevity of approximately 2.8 months for those exposed at ages 7-10. We attribute these effects to school closures and disruptions in children’s socioemotional and cognitive development and provide empirical evidence that their later-life reductions in education and socioeconomic status as potential pathways.
This paper provides causal evidence on the long-term health consequences of prenatal exposure to racial riots in the United States. We construct a novel database linking historical riot events to individual-level mortality records and Census data, and estimate difference-in-differences models that exploit quasi-random variation in birth timing relative to riot events. Our design compares changes in longevity across adjacent nine-month cohorts exposed to anti-Black versus non-Black riots. We find that prenatal exposure to anti-Black riots reduces Black Americans’ life expectancy by about 7.1 months. This effect is nearly twice the magnitude of the longevity reduction associated with prenatal exposure to lynchings documented in prior research, suggesting that the broader community disruption caused by riots—including housing loss, resource deprivation, and social dislocation—may have more severe long-run health consequences than individualized acts of racial terror. Our findings underscore the enduring biological imprint of structural racial violence and contribute to a growing literature documenting how early-life exposure to social shocks can shape long-term human capital and health outcomes.
During school segregations of the early decades of the 20th century, Black teachers faced lower salary compared to their similarly qualified white counterparts owing to de jure segregated pay schedules. The National Association for the Advancement of Colored People (NAACP) embarked on a mission to equalize teacher salaries through court rulings and litigations. In several southern states, such litigations resulted in state policy reforms that restructured the pay schedule in an attempt to increase Black teachers’ salary. Prior literature documented that the reforms were successful in increasing salary, students’ enrollment, and grade progression. In this paper, we contribute to this literature by investigating the long-term impacts of these policies on students’ longevity. We find that a full exposure to the reform during school ages is associated with 2.5 months increases in longevity among Black males. Through a battery of tests, we rule out the concern that the results are confounded by within-state cross-cohort changes in longevity, within-state race-specific overall improvement in longevity, or socioeconomic and sociodemographic compositional change in the treated cohorts versus control cohorts. We discuss the policy implications of these results in light of the literature on later-life impacts of schooling inputs, emphasizing the imperative to address racial disparities in educational access and quality, which play a crucial role in shaping health outcomes for Black males.
Intergenerational Benefits of Childhood Health Intervention: Evidence from Polio Vaccination with Hamid Noghanibehambari Under review
This study investigates the intergenerational effects of the large-scale polio eradication campaign in the United States following the introduction of the polio vaccine in 1955. While prior research has documented the immediate benefits of early-life exposure to disease eradication, little is known about its impact on the next generation’s health outcomes. Leveraging U.S. Vital Statistics data, we link individuals’ early-life exposure to the polio vaccination campaign with their children's birth outcomes. Using a difference-in-differences framework, we compared birth outcomes of mothers who were exposed at different ages to the vaccination campaign and who were born in states with differential pre-vaccine polio rates. We find that maternal exposure to the polio vaccination campaign in utero reduces the likelihood of preterm birth and low birth weight among the next generation. The effects are larger among Black mothers, mothers with lower levels of education, and infants in the lower tail of birth weight distribution, suggesting that early-life health interventions can help mitigate racial and socioeconomic disparities in infant health.
Empowering Generations: Women's Suffrage and its Impact on Children's Old-Age Disability with Hamid Noghanibehambari and Michelle Yin Under review
The fight for women's suffrage is widely regarded as a critical milestone in the quest for social justice, but its implications extend far beyond immediate political gains. This paper investigates the long-term health benefits of women's political empowerment, particularly focusing on old-age disability. We hypothesize that children exposed to increased female political participation during their formative years experience lower disability rates in later life. We utilize a difference-in-differences approach and leverage variations in suffrage law enactment and cohort exposure to test this hypothesis. Our findings indicate that full exposure to suffrage during childhood significantly reduces work disability, cognitive difficulty, independent living difficulty, and self-care difficulty in later life, although no significant effects were observed for vision or hearing difficulties. We show that these effects are not driven by preexisting trends in disability, endogenous migration, selective fertility, or changes in the demographic composition of the sample. Furthermore, we identify increased educational attainment and improved economic outcomes as key channels through which women's suffrage impacts long-term health. These findings underscore the lasting impact of maternal involvement in political decision-making on the well-being of future generations.
Work in Progress
The Labor Market Impact of Robots on Workers with Disabilities: Evidence from the U.S. with Michelle Yin
How (un)Stable Are LLM Occupational Exposure Scores? Evidence from Multi-Model Replication with Michelle Yin and
Claudia Persico
Beyond Women’s Empowerment: The Intergenerational Health Benefits of Contraceptive Access with Hamid Noghanibehambari, Jason Fletcher, and David Slusky
Early Life Disease and Later Life Mortality: Evidence from the Polio Vaccination with Hamid Noghanibehambari and Jason Fletcher