This paper investigates four topics. (1) It examines the different roles played by the propensity score (probabilitiy of selection) in matching, instrumental variable and control functions methods. (2) It contrasts the roles of exclusion restrictions in matching and selection models. (3) It...

This paper summarizes our recent research on evaluating the distributional consequences of social programs. This research advances the economic policy evaluation literature beyond estimating assorted mean impacts to estimate distributions of outcomes generated by different policies and determine...

Two general questions are posed in this paper: (a) In what ways do characteristics of the firm where the worker is employed have an influence on the worker's risk to become unemployed? (b) How do general and specific skills acquired in the firm affect the worker's unemployment risk? The...