st: pooled model regression and tests of heteroskedasticity and correlation of residuals

From	"dora sepour" <dora05@gnet.tn>
To	<statalist@hsphsun2.harvard.edu>
Subject	st: pooled model regression and tests of heteroskedasticity and correlation of residuals
Date	Fri, 26 Oct 2007 18:18:25 +0200

Dear Stata users,
I found no individual effects (fixed or random). So i estimated a pooled regression (OLS). But what are the tests of heteroskedasticity and correlation of residuals? (which commands?).

Thanks for your time,
Best regards,
Dora
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