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st: Multinomial regression with sample selection


From   Christer Thrane <lineea@broadpark.no>
To   statalist@hsphsun2.harvard.edu
Subject   st: Multinomial regression with sample selection
Date   Fri, 12 Oct 2007 19:03:13 +0200

Hi,

Since my dep var of main interest (Y2) have three alternatives for a selected sample (if there were two alternatives, I would have used -heckprob-), I wonder it the following procedure is OK:

1. probit Y1 x1 x2 z1 z2 //the selection equation//

2. generate the Inverse Mills' Ratio, IMR

3. mlogit Y2 x1 x2 x3 x4 z3 IMR, rob //the main equation//

BR,

Christer

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