Fatma Bircan
Middle East Technical University
Department of Economics
210-2032
Hi,
Could anyone tell me whether the coeffcieints in the second selection
equation from heckprob include the indirect effects from the first
stage selection when the explanatory variable appears in both
selection equations and is there a way to sort the direct and indirect
effects so that I only obtain the direct effect of the explanatory
variable in each equation.
Getting marginal effects take too long. Are the marginal effetcs from
separate probits same as the double probit?
By the way, sorting of data alter the heckprob results. Any comment on
that?
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