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st: Re: Fixed effects after xtprobit


From   "Martin Weiss" <martin.weiss1@gmx.de>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: Re: Fixed effects after xtprobit
Date   Wed, 24 Sep 2008 18:18:21 +0200

"There is no command for a conditional fixed-effects model, as there does not exist a sufficient statistic allowing the fixed effects to be conditioned out of the likelihood." (from -h xtprobit-)


HTH
Martin
_______________________
----- Original Message ----- From: "C.T.Shehzad" <c.t.shehzad@rug.nl>
To: <statalist@hsphsun2.harvard.edu>
Sent: Wednesday, September 24, 2008 6:14 PM
Subject: st: Fixed effects after xtprobit



Dear statalisters:

I just wanted to ask why fixed effect model cannot be used with xtprobit while I can do fixed effect with xtlogit. Is there any econometric issue (which I cannot out at the moment) or its a software limitation?

Best regards,

Shehzad

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