st: some help

["Gosh Braham" <goshb@hotmail.com>]

Hi Statalist,

I am trying to estimate a double hurdle model in maximum likelihood, but do 
not know how to start. I woukld appreciate any help. I have attached the 
model which I like to estimate.

The model should have dependence in the error terms of the two equations.

Does anybody have something written?
thanks all,
Gosh




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