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RE: st: Re: panel: within and between dimension/correlated effects

From   MKF.Poschke@Student.Unimaas.NL
Subject   RE: st: Re: panel: within and between dimension/correlated effects
Date   Mon, 24 Feb 2003 14:38:34 +0100


I cannot use a random effects estimator because of strong correlation
between the individual effects and the regressors - heterogeneity bias
according to Chamberlain. On the other hand, the fixed effects estimator
throws out all the between variation. I know that there are ways of taking
into account the heterogeneity bias, but do not know how to do it - that is
why I wanted to know if anybody else does. 


> Greetings, 
> I posted this question some time ago, without any reaction. Therefore, I 
> will try to make it clearer. 
> I am estimating a macroeconomic panel data model, and I am looking for an 
> estimator that accomodates both the within and the between dimensions. 

Isn't the random effects estimator (xtreg, re) a weighted averaged of the 
between and within results? 

Have you taken look at xtgee - it allows for variety of correlation
and semi-robust standard errors, though it is a population-averaged

I hope this helps, 

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