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st: something like a Chow test for clogit?


From   "Jayme Sar" <jaymesar@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: something like a Chow test for clogit?
Date   Mon, 16 Jun 2008 14:12:50 -0700

I want to estimate a conditional logit for a discrete choice problem,
and I need to make sure that the results are consistent for all
subsamples in the population.

In other words, I want to do something like:

clogit y x1 x2

for all 1000 observations.

and:

clogit y x1 x2 for the first 200 observations.

How do I compare the coefficients for the full sample (1000 obs) and
the subsample (200 obs)?  Is there something like a Chow test for the
conditional logit?

Thanks for any help!

Jayme.
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