Stata The Stata listserver
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

Re: st: Fixed-effects and the ordered logit/probit model


From   Mark Schaffer <M.E.Schaffer@hw.ac.uk>
To   statalist@hsphsun2.harvard.edu, Eric Neumayer <e.neumayer@lse.ac.uk>
Subject   Re: st: Fixed-effects and the ordered logit/probit model
Date   Mon, 06 Sep 2004 14:33:01 +0100 (BST)

Eric,

Quoting Eric Neumayer <e.neumayer@lse.ac.uk>:

> Hi,
> 
> the statistic for computing an ordered logit/probit model with fixed
> effects
> is extremely complex, which is why Stata has no routine such as
> xtoprobit or
> xtologit, right? So, how would one interpret the results if someone
> were to
> introduce country dummies in an oprobit model to estimate the
> following?
> 
> xi: oprobit y x i.country
> 

This came up on Statalist about a year ago, and generated a thread which 
included a very informative response from Bill Gould, Vince Wiggins and 
David Drukker:

http://www.stata.com/statalist/archive/2003-09/msg00103.html

The bottom line is that the estimator isn't consistent, and if you use it 
you'll probably get "awful" results.  As others in the thread pointed out, 
the most appealing alternative is probably random effects ordered probit 
using -reoprob- or -gllamm-.

Cheers,
Mark

> Thanks for any suggestions. Eric Neumayer
> 
> *
> *   For searches and help try:
> *   http://www.stata.com/support/faqs/res/findit.html
> *   http://www.stata.com/support/statalist/faq
> *   http://www.ats.ucla.edu/stat/stata/
> 



Prof. Mark Schaffer
Director, CERT
Department of Economics
School of Management & Languages
Heriot-Watt University, Edinburgh EH14 4AS
tel +44-131-451-3494 / fax +44-131-451-3008
email: m.e.schaffer@hw.ac.uk
web: http://www.sml.hw.ac.uk/ecomes
________________________________________________________________

DISCLAIMER:

This e-mail and any files transmitted with it are confidential
and intended solely for the use of the individual or entity to
whom it is addressed.  If you are not the intended recipient
you are prohibited from using any of the information contained
in this e-mail.  In such a case, please destroy all copies in
your possession and notify the sender by reply e-mail.  Heriot
Watt University does not accept liability or responsibility
for changes made to this e-mail after it was sent, or for
viruses transmitted through this e-mail.  Opinions, comments,
conclusions and other information in this e-mail that do not
relate to the official business of Heriot Watt University are
not endorsed by it.
________________________________________________________________
*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/



© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index