These data come from LaLonde's (1986) National Supported Work Demonstration (NSW) Data (Dehejia-Wahha Sample (1999)), used by Firpo (2007).
A data frame with 445 observations on the following 2 variables.
A binary indicator variable: 0 for control, 1 for intervention (received job training)
The response variable: earnings in 1978
Dehejia, R. H. and Wahba, S. (1999), "Causal effects in nonexperimental studies: Reevaluating the evaluation of training programs," Journal of the American Statistical Association, 94, 1053-1062.
Firpo, S. (2007), "Efficient semiparametric estimation of quantile treatment effects," Econometrica, 75, 259-276.
LaLonde, R. J. (1986), "Evaluating the econometric evaluations of training programs with experimental data," The American Economic Review, 604-620.
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