-cmp- from ssc may help you since it gives high flexibility in model construction in 2SLS-like settings.
Nicola
At 02.33 26/01/2008 -0500, "Carlos Gamero" wrote:
>Dear Maarten,
>
>Thank you very much for your answer. The only question is that I dont think
>I have two selection equations. I think I have one (do you work or not) but
>it must be estimated using a bivariate probit model, because the "being in
>education" decission is not exogenous, i.e., if you do work, then you
>probably find it harder to study (and vice versa). That's why I would like
>to estimate the selection equation as part of a bivariate probit model and,
>then, somehow take account of the selection problem later in the
>satisfaction equation (estimated as another probit model).
>
>Thanks a lot, really.
>
>Carlos Gamero
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
