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st: Re: Can cross-sections be pooled

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:

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.

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