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...

Burns and Mitchell (1946, 109) found a recession of "exceptional brevity and moderate amplitude." I confirm their judgment by examining a variety of high-frequency data. Industrial output fell sharply but rebounded within months. Retail seemed little affected and there is no evidence of...

One literature documents a significant, black-white gap in average test scores, while another finds a substantial narrowing of the gap during the 1980's, and stagnation in convergence after. We use two data sources – the Long Term Trends NAEP and AFQT scores for the universe of applicants to...

Seemingly short-term labor market shocks, such as job displacements, can have persistent effects on workers' earnings, employment, job stability, consumption, and access to health insurance. A long literature suggests such changes in workers' socioeconomic conditions can have potentially...

We study contact tracing in a new macro-epidemiological model in which infected agents may not show any symptoms of the disease and the availability of tests to detect these asymptomatic spreaders of the virus is limited. Contact tracing is a testing strategy aiming at reconstructing the...

There is a robust literature documenting the importance of physician practice style (e.g., the propensity to perform certain operations) in explaining outcomes related to patients' physical health. Yet little is known about the role of physicians in explaining patients' mental health outcomes....

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...

We study contact tracing in a new macro-epidemiological model in which infected agents may not show any symptoms of the disease and the availability of tests to detect these asymptomatic spreaders of the virus is limited. Contact tracing is a testing strategy aiming at reconstructing the...