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st: ivtobit and limited dependent endogenous variable


From   "feldman" <feldman@primal.ucdavis.edu>
To   statalist@hsphsun2.harvard.edu
Subject   st: ivtobit and limited dependent endogenous variable
Date   Wed, 11 Jul 2007 16:52:22 -0700

Hi, 

I know that ivtobit works well with a dummy endogenous
variable but I am not sure if
Is it ok to use ivtobit when the endogenous variable is a
limited dependent variable?  More precisely suppose that for
30% of the sample the endogenous variable takes the value 0
and for the rest it has a positive value (the distribution
of zeros in the endogenous variable is different to the
distribution of zeros in the dependent variable). 

Thanks for your help. 

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