Using Matching, Instrumental Variables, and Control Functions to Estimate Economic Choice Models
使用匹配、工具变量与控制函数估计经济选择模型
This paper investigates four topics. (1) It examines the different roles played by the propensity score (the probability of selection into treatment) in matching, instrumental variable, and control function methods. (2) It contrasts the roles of exclusion restrictions in matching and selection models. (3) It characterizes the sensitivity of matching to the choice of conditioning variables and demonstrates the greater robustness of control function methods to misspecification…