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re:st: ivreg, ivreg2 and select variables that have to be dropped


From   Fabien Bertho <[email protected]>
To   [email protected]
Subject   re:st: ivreg, ivreg2 and select variables that have to be dropped
Date   Thu, 13 Jan 2011 15:24:10 +0100 (CET)

Thank you very much for your help and your advices !

Best,

Fabien

> ----------------------------------------
> From: Christopher Baum <[email protected]>
> Sent: Thu Jan 13 13:30:01 CET 2011
> To: <[email protected]>
> Subject: re:st: ivreg, ivreg2 and select variables that have to be dropped
> 
> 
> <>
> The ivreg estimation drops the following variables:
> 
> dummy_mode_3_add_2nd 
> commodity_dum_1 
> origin_dum_34 
> origin_dum_39 
> dest_dum_2
> 
> How I have to use "_rmcoll" in order to drop only the same variables in the ivreg2 estimation?
> 
> 
> Use _rmcoll on your regressor list to see where collinearities appear. Take those variables out of your regressor list. Then use the pruned regressor list in ivreg2.
> 
> Justina suggests using b. to define a base level for categorical variables, but Fabien indicated he was using Stata 10. Not available there.
> 
> Kit
> 
> 
> 
> Kit Baum   |   Boston College Economics & DIW Berlin   |   http://ideas.repec.org/e/pba1.html
>                               An Introduction to Stata Programming  |   http://www.stata-press.com/books/isp.html
>    An Introduction to Modern Econometrics Using Stata  |   http://www.stata-press.com/books/imeus.html
> 
> 
> *
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