The first major insurance expansion of the Affordable Care Act - a provision requiring insurers to allow dependents to remain on parents' health insurance until turning 26 - took effect in September 2010. We estimate this mandate's impacts on numerous outcomes related to health care access,...

Administrative data are considered the "gold standard" when measuring program participation, but little evidence exists on the potential problems with administrative records or their implications for econometric estimates. We explore issues with administrative data using the FoodAPS, a unique...

As of June 2020, the coronavirus pandemic has led to more than 2.3 million confirmed infections and 121 thousand fatalities in the United States, with starkly different incidence by race and ethnicity. Our study examines racial and ethnic disparities in confirmed COVID-19 cases across six...

This paper examines the role physical activity plays in determining body mass using data from the American Time Use Survey. Our work is the first to address the measurement error that arises when time use during a single day--rather than average daily time use over an extended period--is used as...