Bounding the Labor Supply Responses to a Randomized Welfare Experiment: A Revealed Preference Approach
研究康涅狄格州“就业优先”福利改革实验对女性劳动供给和福利参与的短期影响，利用非参数优化模型和显示偏好约束，估计了实验在集约边际和广延边际上的反应边界，发现改革促使许多女性工作但也导致部分人减少收入以获取援助。
We study the short-term impact of Connecticut's Jobs First welfare reform experiment on women's labor supply and welfare participation decisions. A nonparametric optimizing model is shown to restrict the set of counterfactual choices compatible with each woman's actual choice. These revealed preference restrictions yield informative bounds on the frequency of several intensive and extensive margin responses to the experiment. We find that welfare reform induced many women to work but led some others to reduce their earnings in order to receive assistance. The bounds on this latter “ opt-in” effect imply that intensive margin labor supply responses are nontrivial.