Program Heterogeneity and Propensity Score Matching: An Application to the Evaluation of Active Labor Market Policies
研究当劳动力市场培训项目存在多种类型时，如何用倾向得分匹配方法进行微观计量评估，并以瑞士苏黎世地区的积极劳动力市场政策为例，比较不同估计量的效果。
This paper addresses microeconometric evaluation by matching methods when the programs under consideration are heterogeneous. Assuming that selection into the different subprograms and the potential outcomes are independent given observable characteristics, estimators based on different propensity scores are compared and applied to the analysis of active labor market policies in the Swiss region of Zurich. Furthermore, the issues of heterogeneous effects and aggregation are addressed. The results suggest that an approach that incorporates the possibility of having multiple programs can be an informative tool in applied work. © 2002 by the President and Fellows of Harvard College and the Massachusetts Institute of Technology