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st: panel data -xttest2 and xtpcse modules


From   Dolores Jim?nez Rubio <dolores@ugr.es>
To   statalist@hsphsun2.harvard.edu
Subject   st: panel data -xttest2 and xtpcse modules
Date   Wed, 26 May 2010 17:48:37 +0200 (CEST)

Dear Statalisters,

I am using an unbalanced panel data set and would like to test whether
there is cross sectional correlation of the residuals using xttest2.
However I obtain the following message:

"too few observattions across panels. no observations"

Also, when trying to estimate a panel corrected std error model (xtpcse)
using the pairwise option the t statistics are missing.

Could anyone give me some advice on this please?

Many thanks for your help,

Lola

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