Key points are not available for this paper at this time.
David Neumark, Mary Joyce, Evaluating School-to-Work Programs Using the New NLSY, The Journal of Human Resources, Vol. 36, No. 4, Special Issue on Early Results from the National Longitudinal Survey of Youth, 1997 Cohort (Autumn, 2001), pp. 666-702
Neumark et al. (Mon,) studied this question.