The key problem in testing for racial profiling in traffic stops is estimating the risk set, or "benchmark," against which to compare the race distribution of stopped drivers. To date, the two most common approaches have been to employ Census-based residential population data or to conduct...

Research has long identified racial differences in perceptions of criminal injustice. Given that race is confounded with neighbourhood context, it remains unclear the extent to which individual or neighbourhood attributes explain racial differences in these perceptions. This paper advances...

Graduated driver licensing (GDL) is a critical policy tool for potentially improving teenage driving while reducing teen accident exposure. While previous studies demonstrated that GDL reduces teenage involvement in fatal crashes, much remains unanswered. We explore the mechanisms through which...

Nationally, the welfare caseload declined by more than fifty percent between 1994 and 2000. Considerable research has been devoted to understanding what caused this decline. Much of the literature examining these changes has modeled the total caseload (the stock) directly. Klerman and Haider...

Using data from nationwide and California-specific surveys, the authors provide evidence on the importance of the number of "entries" into the welfare system to explain the decline in welfare caseload during the late 1990s.