Take a look at the Stata FAQs:
Can you explain Chow tests?
http://www.stata.com/support/faqs/stat/chow3.html
How can I compute the Chow test statistic?
http://www.stata.com/support/faqs/stat/chow.html
Scott Merryman
----- Original Message -----
From: "Botelho, Delane" <[email protected]>
To: <[email protected]>
Sent: Wednesday, July 17, 2002 11:32 AM
Subject: st: test equality of coefficients from 2 regressions
> Hi
>
> I ran 2 regressions (using regress), using the same variables, only
changing
> the observations. Now I have to test if the 2 coefficients of the same
> variable are equal.
>
> I only know how to do this when the coefficients are in the same
regression,
> or in multiple equations as in mlogit or sureg.
>
> How to test the 2 coefficients in 2 regressions?
>
> Thanks
>
> Delane
> *
> * For searches and help try:
> * http://www.stata.com/support/faqs/res/findit.html
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/