Transfer payments to poor families are increasingly conditioned on work, either via wage subsidies available only to workers or via work requirements in more traditional welfare programs. Although the effects of such programs on employment are fairly well understood, relatively little is known...

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.