We review and extend nonparametric partial identifi cation results for average and quantile treatment effects in the presence of sample selection. These methods are applied to assessing the wage effects of Job Corps, United States' largest job-training program targeting disadvantaged youth. Excluding Hispanics, our estimates suggest positive program effects on wages both at the mean and throughout the wage distribution. Across the demographic groups analyzed, the statistically signifi cant estimated average and quantile treatment effects are bounded between 4.6 and 12 percent, and 2.7 and 14 percent, respectively. We also document that the program's wage effects vary across quantiles and demographic groups.
ASJC Scopus subject areas
- Economics and Econometrics
- Strategy and Management
- Organizational Behavior and Human Resource Management
- Management of Technology and Innovation