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Re: st: Robust option with panel estimations


From   Jingsong Cui <[email protected]>
To   [email protected]
Subject   Re: st: Robust option with panel estimations
Date   Wed, 11 Jun 2003 08:35:36 -0400

Hi, Leonid. In addition to -areg- as suggested by David, you 
can also try -xtgls-, which allows heteroskedasticity across 
panels and/or AR(1) autocorrelation. -xtgls- uses different 
assumption than _robust (Huber/White/Sandwich model in 
Stata), but both take care of the panel-heteroskedastic 
issue. You can check out here to see if it is useful to you:
http://www.stata.com/support/faqs/stat/xtgls_rob.html

Among all the -xt- commands, -robust- options seems 
available only with -xtreg, pa- or -xtgee-. Both, however, 
are population-averaged models.

---- Original message ----
>Date: Tue, 10 Jun 2003 16:48:29 -0400
>From: David Jacobs <[email protected]>  
>Subject: Re: st: Robust option with panel estimations  
>To: [email protected]
>
>You can use AREG with the robust option to get Huber-White 
corrected 
>standard errors for a fixed effects analysis.
>
>Dave Jacobs
>
>At 04:08 PM 6/10/2003 -0400, you wrote:
>>Dear all,
>>
>>Stata provides the option "robust" with reg and ivreg 
commands to use 
>>Huber-White estimator of variance
>>Is it possible to use the Huber-White estimator with panel 
data? xtreg and 
>>xtivreg do not have the "robust option"
>>
>>Thank you,
>>Leonid
>>
>>*
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>>*   http://www.ats.ucla.edu/stat/stata/
>
>
>*
>*   For searches and help try:
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*
*   For searches and help try:
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