What Causes Public Assistance Caseloads to Grow?
利用州面板数据，分析公共援助案件数量的变化原因，发现AFDC基本案件在1980年代中期出现无法解释的增长，主要由儿童单独案件、经济衰退期领取率上升及长期资格增加驱动。
This paper uses state panel data to investigate changes in public assistance caseloads. Compared to other research, it uses more extensive data, both across states and over time; it utilizes a particularly rich set of control variables; it investigates the different subcomponents of the AFDC program separately; and it investigates the extent to which changes in caseloads are driven by changes in take-up rates versus in eligibility. The results indicate that an unexplained increase in AFDC-Basic caseloads started in the mid-1980s. This trend appears to be driven by three underlying components: a rise in child-only cases, an increase in take-up rates over the early 1990s during the economic slowdown, and a long-term increase in eligibility which is not well explained by a large set of control variables. In contrast, AFDC-UP caseload changes are relatively well-explained by the model in this paper and are far more responsive to economic factors. Recent state policy changes are correlated with caseload declines, but more than half of their affect appears to precede their implementation, suggesting that other changes in client and caseworker behavior was occurring in states that adopted major policy changes.