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Working Paper
Health-care reform or labor market reform? a quantitative analysis of the Affordable Care Act
An equilibrium model with ?rm and worker heterogeneity is constructed to analyze labor market and welfare implications of the Patient Protection and Affordable Care Act (ACA). Our model implies a signi?cant reduction in the uninsured rate from 22.6 percent to 5.6 percent. {{p}} The model predicts a moderate positive welfare gain from the ACA, due to redistribution of income through Health Insurance Subsidies at the Exchange as well as Medicaid expansion. About 2.1 million more part-time jobs are created under the ACA, in expense of 1.6 million full-time jobs, mainly because the link between ...
Working Paper
Losing insurance and psychiatric hospitalizations
We study the effect of losing insurance on psychiatric – mental health disorder (MHD) and substance use disorder (SUD) – hospital-based care. Psychiatric disorders cost the U.S. over $1T each year and hospitalizations provide important and valuable care for patients with these disorders. We use variation in public insurance coverage (Medicaid) eligibility offered by a large-scale and unexpected disenrollment in the state of Tennessee in 2005 that lead to 190,000 individuals losing their insurance. Medicaid enrollees are at elevated risk for psychiatric disorders. Following the ...
Working Paper
Racial Disparities in Frontline Workers and Housing Crowding during COVID-19: Evidence from Geolocation Data
We document that racial disparities in COVID-19 in New York City stem from patterns of commuting and housing crowding. During the initial wave of the pandemic, we find that out-of-home activity related to commuting is strongly associated with COVID-19 cases at the ZIP Code level and hospitalization at an individual level. After layoffs of essential workers decreased commuting, we find case growth continued through household crowding. A larger share of individuals in crowded housing or commuting to essential work are Black, Hispanic, and lower-income. As a result, structural inequalities, ...
Working Paper
The Impact of Tobacco-Free School Laws on Student and Staff Smoking Behavior
A number of US states have enacted bans on tobacco use by students, staff, and visitors anywhere on the grounds of public elementary and secondary schools statewide. These laws are intended to reduce tobacco use, reduce exposure to secondhand smoke, reinforce anti-tobacco curricula taught in schools, and prevent children from viewing their teachers and fellow students using tobacco products. We examine the impact that the laws have on the smoking behavior of students, teachers, and other school staff by estimating difference-in-differences models that exploit the time variation in adoption of ...
Working Paper
The Impact of Car Pollution on Infant and Child Health: Evidence from Emissions Cheating
Car exhaust is a major source of air pollution, but little is known about its impacts on population health. We exploit the dispersion of emissions-cheating diesel cars?which secretly polluted up to 150 times as much as gasoline cars?across the United States from 2008-2015 as a natural experiment to measure the health impact of car pollution. Using the universe of vehicle registrations, we demonstrate that a 10 percent cheating-induced increase in car exhaust increases rates of low birth weight and acute asthma attacks among children by 1.9 and 8.0 percent, respectively. These health impacts ...
Working Paper
How do Doctors Respond to Incentives? Unintended Consequences of Paying Doctors to Reduce Costs
Billions of dollars have been spent on pilot programs searching for ways to reduce healthcare costs. I study one such program, where hospitals pay doctors bonuses for reducing the total hospital costs of admitted Medicare patients (a ?bundled payment?). Doctors respond to the bonuses by becoming more likely to admit patients whose treatment can generate high bonuses, and sorting healthier patients into participating hospitals. Conditional on patient health, however, doctors do not reduce costs or change procedure use. These results highlight the ability of doctors to game incentive schemes, ...
Newsletter
Measuring the Effects of the Covid-19 Delta Wave on the U.S. Hourly Labor Market
In this article, we take a closer look at the implications of rising Covid-19 cases and vaccination rates for the U.S. hourly labor market. To do so, we rely on geographic variation in the high-frequency data collected by the firm Homebase with its timekeeping software. This data source allows us to make use of U.S. state-level variation on a daily basis in order to decompose the effects on hourly employees and hours worked from both rising cases and vaccinations.
Report
A Parsimonious Behavioral SEIR Model of the 2020 COVID Epidemic in the United States and the United Kingdom
I present a behavioral epidemiological model of the evolution of the COVID epidemic in the United States and the United Kingdom over the past 12 months. The model includes the introduction of a new, more contagious variant in the UK in early fall and the US in mid December. The model is behavioral in that activity, and thus transmission, responds endogenously to the daily death rate. I show that with only seasonal variation in the transmission rate and pandemic fatigue modeled as a one-time reduction in the semi-elasticity of the transmission rate to the daily death rate late in the year, the ...
Working Paper
The Evolution of Health over the Life Cycle
We construct a unified objective measure of health status: the frailty index, defined as the cumulative sum of all adverse health indicators observed for an individual. First, we show that the frailty index has several advantages over self-reported health status, particularly when studying health dynamics. Then we estimate a stochastic process for frailty dynamics over the life cycle. We find that the autocovariance structure of frailty in panel data strongly supports a process that allows the conditional variance of frailty shocks to increase with age. Our frailty measure and dynamic process ...
Working Paper
Opioids and the Labor Market
This paper quantifies the relationship between local opioid prescription rates and labor market outcomes in the United States between 2006 and 2016. To understand this relationship at the national level, we assemble a data set that allows us both to include rural areas and to estimate the relationship at a disaggregated level. We control for geographic variation in both short-term and long-term economic conditions. In our preferred specification, a 10 percent higher local prescription rate is associated with a lower prime-age labor force participation rate of 0.53 percentage points for men ...