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Re: st: RE: Hausman taylor


From   "Julia Spies" <JuliaSpies@gmx.de>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: RE: Hausman taylor
Date   Sat, 29 Apr 2006 01:07:34 +0200 (MEST)

Mark,

I would like to add that the estimates are statistically significant and
that estimating these time-invariant variables in a RE context provides much
lower (and more reasonable) estimates.

Julia 


> --- Ursprüngliche Nachricht ---
> Von: "Schaffer, Mark E" <M.E.Schaffer@hw.ac.uk>
> An: <statalist@hsphsun2.harvard.edu>
> Betreff: st: RE: Hausman taylor
> Datum: Fri, 28 Apr 2006 22:51:29 +0100
> 
> Julia, 
> 
> > -----Original Message-----
> > From: owner-statalist@hsphsun2.harvard.edu 
> > [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Julia Spies
> > Sent: 28 April 2006 12:48
> > To: statalist@hsphsun2.harvard.edu
> > Subject: st: Hausman taylor
> > 
> > Dear all,
> > 
> > I'm quite a beginner with Stata and i'm trying to run a 
> > Hausman taylor regression. However, taking some (plausible) 
> > time-invariant variables as endogeneous results in outrageous 
> > parameter estimates for these variables.
> > Nevertheless, the over-identification test suggests that 
> > instrumenting these variables has improved the model.
> 
> This sounds odd ... what do you mean by "improving the model"?
> 
> --Mark
> 
> > Does 
> > anyone have an idea what the problem could be? I understand 
> > there is no option to correct for heteroskedasticity and 
> > autocorrelation. Does anyone know how to do it manually?
> > 
> > Cheers,
> > Julia
> > 
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> > 
> > 
> 
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-- 
Universität Hohenheim 
Lehrstuhl für Außenwirtschaft

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