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Going beyond LATE: Bounding Average Treatment Effects of Job Corps Training

Xuan Chen, Carlos A. Flores and Alfonso Flores-Lagunes ()

No 93, GLO Discussion Paper Series from Global Labor Organization (GLO)

Abstract: We derive nonparametric sharp bounds on average treatment effects with an instrumental variable (IV) and use them to evaluate the effectiveness of the Job Corps training program for disadvantaged youth. We focus on the population average treatment effect (ATE) and the average treatment effect on the treated (ATT), which are parameters not point identified with an IV under heterogeneous treatment effects. The main assumptions employed to bound the ATE and ATT are monotonicity in the treatment of the average outcomes of specified subpopulations, and mean dominance assumptions across the potential outcomes of these subpopulations. Importantly, the direction of the mean dominance assumptions can be informed from data, and some of our bounds do not require an outcome with bounded support. We employ these bounds to assess the effectiveness of Job Corps using data from a randomized social experiment with non-compliance (a common feature of social experiments). Our empirical results indicate that the effect of Job Corps on eligible applicants (the target population) four years after randomization is to increase weekly earnings and employment by at least $24:61 and 4:3 percentage points, respectively, and to decrease yearly dependence on public welfare benefits by at least $84:29. Furthermore, the effect of Job Corps on participants (the treated population) is to increase weekly earnings by between $28:67 and $43:47, increase employment by between 4:9 and 9:3 percentage points, and decrease public benefits received by between $108:72 and $140:29. Finally, some of our results point to positive average effects of Job Corps on the labor market outcomes of those individuals who decide not to enroll in Job Corps regardless of their treatment assignment (the so-called never takers), suggesting that these individuals would benefit from participating in Job Corps.

Keywords: Training programs; Program evaluation; Average treatment effects; Bounds; Instrumental variables (search for similar items in EconPapers)
JEL-codes: J30 C13 C21 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-lma
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
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Working Paper: Going Beyond LATE: Bounding Average Treatment Effects of Job Corps Training (2015) Downloads
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