Estimating the Effects of Lenght of Exposure to Traning Program: The Case of Job Corps

Length of exposure to a training program is important in determining the labor market outcomes of participants. Employing methods to estimate the causal effects from continuous treatments, we provide insights regarding the effects of different lengths of enrollment to Job Corps (JC)-- America's...

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Bibliographic Details
Published inIDEAS Working Paper Series from RePEc
Main Authors Flores, Carlos A, Flores-Lagunes, Alfonso, Gonzalez, Arturo, Neumann, Todd C
Format Paper
LanguageEnglish
Published St. Louis Federal Reserve Bank of St. Louis 01.01.2009
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Summary:Length of exposure to a training program is important in determining the labor market outcomes of participants. Employing methods to estimate the causal effects from continuous treatments, we provide insights regarding the effects of different lengths of enrollment to Job Corps (JC)-- America's largest and most comprehensive job training program for disadvantaged youth. We semiparametrically estimate average causal effects (on the treated) of different lengths of exposure to JC, using the "generalized propensity score" under the assumption that selection into different lengths is based on a rich set of observed covariates. "Placebo tests" are performed to gauge the plausibility of this assumption. We find that the estimated effects are increasing in the length of training, and that the marginal effects of additional training are decreasing with length of enrollment. We also document differences in the estimated effects of length of exposure across different demographic groups, which are particularly large between males and females. Finally, our results suggest an important "lock-in" effect in JC training.