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st: Heckman Sample Selection and Average treatment Effect
I am doing a research on identifying the average treatment effect of a training program. In order to get rid of the endogeneity problem of program participation, I want to try Heckman sample selection technique. But I don't know how to get the average treatment effect by running Heckman in Stata.
t is dummy for training program (1: participate, 0: not participate)
I want to know how much the training program improve the performance.
heckman dep_var var_1...var_n (t=var_1...var_m) twostep
can not give me the effect of t on dep_var.
How can I do that in Stata?
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