James J. Heckman, V. Joseph Hotz, An Investigation of the Labor Market Earnings of Panamanian Males Evaluating the Sources of Inequality, The Journal of Human Resources, Vol. 21, No. 4 (Autumn, 1986), pp. 507-542
No takes yet. Share an insight, caveat, or question.
Heckman et al. (1986) studied this question.
Synapse has enriched 2 closely related papers on similar clinical questions. Consider them for comparative context: