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RE: st: ologit with fixed effect


From   Fei Deng <dengfei@bu.edu>
To   statalist@hsphsun2.harvard.edu
Subject   RE: st: ologit with fixed effect
Date   Sat, 29 Oct 2005 11:54:20 -0400 (EDT)

Thanks a lot, Steve. It seems I have to use GAUSS for this.

On Sat, 29 Oct 2005, Steve Stillman wrote:

This will only provide an unbiased estimate if you have more years of data than households (ie T>N where N is the fixed effect dimension).  Otherwise, you have the familiar incidental parameters problem in non-linear models.  The only fixed effects approach that gives an unbiased estimate here is the conditional maximum likelihood approach used in xtlogit, fe or clogit.  It is possible to extend this approach to ordered models but as far as I am aware no one has programmed this in stata.  Ferrer-i-Carbonel, A., Frijters, P. (2004), 'The effect of methodology on the determinants of happiness', Economic Journal 114, 641-659 discusses this model in detail and the authors may have code (I believe in GAUSS) available.

Cheers,
Steve

-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu]On Behalf Of maartenbuis
Sent: Saturday, October 29, 2005 10:17 AM
To: statalist@hsphsun2.harvard.edu
Subject: RE: st: ologit with fixed effect


One way to get a fixed effect model is to add dummies for households
in a regular ologit (gologit2) command.

Hope this helps,
Maarten





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