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st: Conditional logit


From   <R.Alegria@lse.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: Conditional logit
Date   Thu, 1 May 2008 13:38:52 +0100

Hi all,

I'm estimating a conditional logit with 150 possible alternatives.
However, over these 150 possible alternatives only 134 are chosen.

When estimating in Stata with clogit, should I include as my choice set
the 150 possible alternatives or only the 134 that are actually chosen?

I have some doubts about whether the estimation procedure takes into
account alternatives that are not chosen by any chooser.

Thanks in advance,
Rodrigo


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