We present a minimum distance approach for conducting hypothesis testing in the presence of potentially weak instruments. Under this approach, we propose size-correct tests for limited dependent variable models with endogenous explanatory variables such as endogenous tobit and probit models....

The optimality of supply interventions for addictive drugs is a function of demand responses to price, enforcement costs, and the relative size of external costs. Researchers need credible estimates of demand responses, but most research designs use price series affected by law enforcement...

Since 1997, states have begun to make criminal history records publicly available over the Internet. This paper exploits this previously unexamined variation to identify the effect of expanded employer access to criminal history data on the labor market outcomes of ex-offenders and...

One-third of children in the United States are born to unmarried parents. A substantial number of black and Hispanic children live with a never-married mother. Children of never-married mothers are more likely to drop out of high school, repeat grades, and have behavioral problems than are...