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RE: st: GMM diff vs sys
Nick
[email protected]
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]On Behalf Of
> [email protected]
> Sent: 09 February 2006 10:58
> To: [email protected]
> Subject: Re: st: GMM diff vs sys
>
>
> I`ve tried this
>
> xtlsdvc depvar varlist
>
> But It hasn`t funtioned Could you tell me what it`s wrong?
>
> Thanks a lot
>
>
> > Hi,
> >
> > There is a recent paper by Bun and Kiviet "The Effects of Dynamic
> > Feedbacks on LS and MM Estimator Accuracy in Panel Data Models",
> > forthcoming in Journal of Econometrics. This one explains
> that there
> > are cases where the difference GMM can do better than the
> system GMM.
> >
> > However, with only 20 countries it is very unlikely to get sensible
> > results regardless of the GMM estimator you use. This is
> because the
> > virtue of using GMM is in large samples. You may be better
> off by using
> > the xtlsdvc command which refers to Kiviets bias corrected
> estimator.
> >
> > Best
> >
> > Vasilis
> >
> >
> > On Feb 7 2006, [email protected] wrote:
> >
> >>Dears,
> >>I have a panel dataset for a sample of 20 countries over 8
> periods I`ve
> >> use GMM method to estimate a model of convergence like this
> >>yit=b yit-1 + q xit + uit
> >>where xit are exogenous variables
> >>I could be posible that difference GMM work better than sysyem GMM?
> >> Thanks
> >>
> >>
> >>
> >>*
> >>* 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/
> >>
> >
> > --
> > If I could get my membership fee back, I'd resign from the
> human race.
> > Fred Allen (1894 - 1956)
> >
> >
> > *
> > * 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/
>
>
>
> *
> * 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/
>
*
* 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/
