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st: fixed vs random effect model


From   amatoallah ouchen <at.ouchen@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: fixed vs random effect model
Date   Sun, 4 Jul 2010 16:42:30 +0200

Good day Stata-listers,
I'm apoloziging is the question may seems elementary for many of you,
but i really need to check this before going on in my analysis. i'm
running a panel data regression and after performing the haussman test
the conclusion was that my model is a fixed effect one. The problem is
located on my explanatory variables which display week variations, and
as it is well known fixed effect model gives weak results in a such
case. So should 'i use the random effect instead???

Thanks a lot in advance.

Ama.
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