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RE: st: RE: re: 3sls and fixed effects


From   "Biljana Dlab" <[email protected]>
To   <[email protected]>
Subject   RE: st: RE: re: 3sls and fixed effects
Date   Sat, 16 Oct 2010 19:02:56 +0200

I tried as you suggested but then i get message:

"Equation is not identified -- does not meet order conditions" 

Any idea what could be the problem.

Thanks.

Best,
Biljana

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of John
Antonakis
Sent: 16 October 2010 16:54
To: [email protected]
Subject: Re: st: RE: re: 3sls and fixed effects

Put xi: before the regression--seems that you are not running the latest

version of Stata.

xi: reg3 (invest mvalue kstock i.company) (kstock time i.company),

Regards,
John.

__________________________________________

Prof. John Antonakis, Associate Dean
Faculty of Business and Economics (HEC)
Department of Organizational Behavior
University of Lausanne
Internef #618
CH-1015 Lausanne-Dorigny
Switzerland

Tel ++41 (0)21 692-3438
Fax ++41 (0)21 692-3305

Home page:
http://www.hec.unil.ch/people/jantonakis
__________________________________________


On 16.10.2010 16:49, Biljana Dlab wrote:
> I tried to put in my regression:
> Reg3(... i.year i.firm)(... i.year i.firm), endog(...)
>
> But then I get the error message:
>
> i:  operator invalid
>
> I have panel data
>
> Thanks,
>
> Biljana
>
>
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of Christopher
> Baum
> Sent: 16 October 2010 16:39
> To: [email protected]
> Subject: st: re: 3sls and fixed effects
>
> <>
> Biljana wonders how to include fixed effects in 3SLS:
>
> webuse grunfeld, clear
> reg3 (invest mvalue kstock i.company) (kstock time i.company),
> endog(invest kstock)
>
> 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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