st: Adjusted R-squared with fixed-effects regression

[fvarwig@wiwi.uni-frankfurt.de]

Dear Stata-Users,

I've been searching the archive for quite a while now but somehow  
couldn't find an answer to my following question:


How is the adjustment for the adjusted R-squared calculated when using  
xtreg, fe?

The difference between the within R-squared (which I think is most  
interesting for me) and the adjusted R-squared is really high most of  
the time, so that my results seem pretty useless when taking the  
adjusted R-squared after a xtreg, fe regression.

Can anybody help me? Or show me, how to prove that the adjusted  
R-squared is useless when doing xtreg, fe regressions? ;-)

Thanks a lot,
Falko

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