Over the past 25 years in the United States, enforcement of drug prohibition has expanded dramatically. Over the same period, however, the trends in drug production and consumption have been essentially flat, and the real, purityadjusted prices of both cocaine and heroin have more than halved....

This paper uses a set of "natural experiments," created by the passage of a U.S. Department of Transportation drug-testing mandate and 13 state testing laws, to examine the effects of testing truckers for illicit substances on highway safety. Since truckers do not bear the full costs of their...

We investigate the role of physician agency and competition in determining health care supply and patient outcomes. A 2005 change to Medicare fees had a large, negative impact on physician profit margins for providing chemotherapy treatment. In response to these cuts, physicians increased their...

We use a regression discontinuity design to analyze an understudied aspect of school accountability systems—how schools use financial rewards. For two years, California's accountability system financially rewarded schools based on a deterministic function of test scores. Qualifying schools...

We estimate the current impact of Medicare on medical expenditure risk and financial strain. At age 65, out-of-pocket expenditures drop by 33% at the mean and 53% among the top 5% of spenders. The fraction of the population with out- of-pocket medical expenditures above income drops by more than...

Between 1973 and 2003, abortion providers in the United States were the targets of over 300 acts of extreme violence. Using unique data on attacks and on abortions, abortion providers, and births, we examine how anti-abortion violence has affected providers' decisions to perform abortions and...

Between 1973 and 2003, abortion providers in the United States were the targets of over 300 acts of extreme violence. Using unique data on attacks and on abortions, abortion providers, and births, we examine how anti-abortion violence has affected providers' decisions to perform abortions and...