Statalist The Stata Listserver


[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

Re: st: RE: RE: GMM + dummy variable


From   "Austin Nichols" <[email protected]>
To   [email protected]
Subject   Re: st: RE: RE: GMM + dummy variable
Date   Wed, 8 Nov 2006 11:39:07 -0500

Samuel--
You may want year dummies, too, and for that I recommend using -tab-
with a -gen- option:

ssc install ivreg2, replace
ssc install xtivreg2, replace
ssc install xtabond2, replace
use http://fmwww.bc.edu/ec-p/data/macro/abdata.dta, clear
tsset id year
tab ye, gen(dy)
drop dy1
g highorlow=(ind==5 | ind==7) if !mi(ind)
xtivreg2 ys k n dy* (=indout) if hi==0, fe cl(id) gmm small
xtivreg2 ys k n dy* (=indout) if hi==1, fe cl(id) gmm small

Also read the help files for -xtivreg2- and -xtabond2- and the
references therein for descriptions of various good panel methods.
(The example above is not a good method, just illustrative of syntax.)

On 11/8/06, Nick Cox <[email protected]> wrote:
Samuel already has his dummy, so I don't think that
is the issue. I don't think that mentioning GMM
ties this problem down precisely, any more than
saying that one is using maximum likelihood.

Nick
[email protected]

Maarten Buis

> I don't know about the gmm, but for the dummies have a look
> at -help xi-.

samuel allen

>  I need to compute two different regressions.
> This is my variables list:   company, year (from
> 1980 to 1990), id (1, 2, 3...), var1, var2... ,
> highorlow (it is an already created column of 1 and
> 0, a number for each firm).
> Could somebody write me command-examples using this
> dummy?
*
*   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 1996–2024 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index