“…As far as we are aware, there are currently results for only four studies that use data for both a period prior to and one after welfare reform and that take into account a wide range of changes associated with welfare reform (Chipty, Witte, and Queralt, 1999;Lemke et al, 1999;Queralt, Witte, and Griesinger, 1999;Witte, Queralt, Chipty, and Griesinger, 1999). These studies use large samples of child-care subsidy recipients in Massachusetts, a state that began welfare reform prior to PRWORA, and Florida, a state that implemented welfare reform immediately after PRWORA became effective.…”