st: biprobit vs treatreg2

["Andrea Morescalchi" <morescalchi@ec.unipi.it>]

Dear all,

I am estimating a model with a binary outcome variable and 
an endogenous discrete regressor, which can be either 
binary or multinomial. The multinomial case, i.e. when my 
regressor has more than two states, is covered by the 
command - mtreatreg - which uses maximum simulated 
likelihood methods.
Anyway, this command does not seem to support the case of 
a binary treatment which apparently was supported by the 
"obsolete" command - treatreg2 -. Unfortunately, it seems 
that treatreg2, while allowing a binary-treatment, does 
not allow yet a probit for the outcome. Moreover, the 
basic - treatreg - command is thought to be applied only 
for continuous outcome. In the end, it seems to me that 
the only command I can use for the binary-treatment case 
is - biprobit - (unless of course I assume exogeneity of 
the treatment).
Is my understanding correct or there is a way to use a 
treatment-effect estimator for the probit/binary-treatment 
case?

I Thank you very much for your attention

Andrea
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