st: ML and instrumental variables

[Val�rie Orozco <Valerie.Orozco@toulouse.inra.fr>]

I'm estimating an AIDS model with ML using and changing the program from 
Poi concerning the QUAIDS model.
I would like to add instrumental variables since I think that some 
variables are endogeneous.  Is it a special way to test endogeneity with 
ML (I know the hausman test) ? Is it a special way to specify 
instrumental variables (I don't know if I can use ivreg2) and how to 
test the validity of my instrumental variables (Does overid still ok?)

Thank you for advice.

val�rie


--

***********************
Val�rie Orozco
INRA ESR Toulouse
ESR INRA - BP52627 - 31326 Castanet Tolosan Cedex 
orozco@toulouse.inra.fr
05-61-28-50-97
***********************




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