I was wondering if anyone (perhaps Maarten?) has estimated the marginal
effects for a combination of linear and quadratic terms (eg. age and age2)
after implementing a heckman two stage selection model. If so, could you
please help me with the syntax in stata- can nlcom be used for this? Is
there an option to also get the standard errors (presumably using
bootstrapping)? As my variables are in both stages of the model, I am hoping
to estimate the marginal effects based on the coefficients in the selection
model as well as the 2nd stage model.
Thanks
Pradeep
Pradeep Kurukulasuriya
FES- Yale University
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