Peters and Fisher evaluate 75 enterprise zones (EZs) located in 13 states to gain an understanding of the overall effectiveness of state enterprise zones. Faced with a paucity of data on EZs that could be used in standard economic analysis, the authors employ a hypothetical firm model in which...

By increasing the labor supply of welfare recipients, welfare reform may reduce wages and increase unemployment among other less-educated groups. These "spillover effects" are difficult to estimate because welfare caseloads decrease in response to improvements in the economy, which leads...

We use a regression-discontinuity design to study the effects of double blocking sixth-grade students in reading and mathematics on their achievement across three years of middle school. To identify the effect of the intervention, we use sharp cutoffs in the test scores used to assign students...