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st: estimation with selmlog


From   fatma bircan <bircan@metu.edu.tr>
To   statalist@hsphsun2.harvard.edu
Subject   st: estimation with selmlog
Date   Tue, 09 Dec 2003 15:57:16 +0200

Fatma Bircan
Middle East Technical University
Department of Economics
210-2056



Hello,

In the output with "selmlog" command there are series of variables
labeled (m1 to m4 since we have four choices in the mlogit model).  In
the stata module on "selmlog command" it is stated that these
variables are consistent estimators of conditional expected values of
residuals derived from the mlogit model. The coefficients on these
variables are the estimates of the covariance between the residual in
the regression and the residual from the mlogit model.Could anyone
please explain what these terms mean? I expect only one selection term
and its coefficient in the regression equation of primary interet.  

Regards
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