We assess the effectiveness of Job Corps (JC), the largest job training program targeting disadvantaged youth in the United States, by constructing nonparametric bounds for the average and quantile treatment effects of the program on wages. Our preferred estimates point toward convincing...

An important goal when analyzing the causal effect of a treatment on an outcome is to understand the mechanisms through which the treatment causally works. We define a causal mechanism effect of a treatment and the causal effect net of that mechanism using the potential outcomes framework. These...

The National Job Corps Study (NJCS) was a four-year longitudinal social experiment that randomized over 15,000 Job Corps eligible applicants into treatment and control groups. Experimental estimators revealed a positive impact of Job Corps training in the weekly earnings of white and black...