发表机构
UCLA; Korea Development Institute; Cornell University（加州大学洛杉矶分校; 韩国开发研究院; 康奈尔大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本研究利用三重差分设计评估SNAP工作要求的效果，发现其减少7%参与率且未增加劳动供给，并主要筛除低收入者，社会成本超过预算节省。
AI 中文摘要
我们研究了工作要求作为补充营养援助计划（SNAP）中筛选机制的有效性。针对“无受抚养人的健全成年人”的工作要求在大衰退后被暂停，并在2010年代在各县和州逐步恢复。利用来自五个州的关联行政SNAP和就业数据以及三重差分设计，我们发现工作要求使SNAP参与率降低了7%，而没有增加劳动力供给，并且不成比例地筛选出低收入个体。我们构建了一个福利框架来解释这些结果，发现工作要求的社会成本超过了预算节省。
英文摘要
We examine the effectiveness of work requirements as a screening device in the Supplemental Nutrition Assistance Program (SNAP). Work requirements for "able-bodied adults without dependents" were suspended after the Great Recession and gradually reinstated across counties and states in the 2010s. Using linked administrative SNAP and employment data from five states and a triple-differences design, we find that work requirements reduce SNAP participation by seven percent without increasing labor supply and disproportionately screen out low-income individuals. We develop a welfare framework to interpret these results and find that the social costs of work requirements exceed budget savings.
Comments41 pages, 5 figures, 10 tables
