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st: RE: Question about options of "xtreg, re"


From   "Schaffer, Mark E" <M.E.Schaffer@hw.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: Question about options of "xtreg, re"
Date   Thu, 27 Nov 2008 11:56:26 -0000

Lian,

> -----Original Message-----
> From: owner-statalist@hsphsun2.harvard.edu 
> [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Lian
> Sent: 26 November 2008 18:40
> To: statalist@hsphsun2.harvard.edu
> Subject: st: Question about options of "xtreg, re"
> 
> Dear Stata experts,
> 
> I have panel data from a designed experiment.
> And I am running a xtreg, re. I need to suppress the intercept.
> However Stata 10 doesn't allow this option. Is there a rationale for
> this ? And
> if anyone can suggest other options, I'd highly appreciate it.

Maarten and Kit have suggested caution in constraining the intercept to
zero, and I share this view.  But if you must, -xtgee- will estimate
population-averaged random-effects models and it accepts the -nocons-
option.

Caveat emptor, though!

Cheers,
Mark

Prof. Mark Schaffer
Director, CERT
Department of Economics
School of Management & Languages
Heriot-Watt University
Edinburgh EH14 4AS
tel +44-131-451-3494 / fax +44-131-451-3296
http://ideas.repec.org/e/psc51.html


> 
> Lian
> -- 
> Ph.D Candidate
> School of Information
> University of Michigan
> Cell: +1 (734) 709 3385
> 1075 Beal Ave., Ann Arbor, MI 48109
> 
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