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st: Re: Can cross-sections be pooled


From   johan.hellstrom@pol.umu.se
To   statalist@hsphsun2.harvard.edu
Subject   st: Re: Can cross-sections be pooled
Date   Tue, 9 Oct 2007 12:12:48 +0200 (CEST)

Have a look at the Stata's FAQs:

http://www.stata.com/support/faqs/stat/chow3.html
http://www.stata.com/support/faqs/stat/chow.html
http://www.stata.com/support/faqs/stat/awreg.html


Best,
Johan Hellstrom



>Dear Collegues,
>
>
>Can someone please tell me what command(s) may be used
>to TEST if  a panel, cohort of two  cross-sections
>(1997,2001) can be pooled?
>
>I am running three estimations in(cross-section,
>pooled and the first-difference)...Although pooled
>model tends to show better results, not sure
>pooling is valid.
>
>Thanks
>Anita

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