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From | Jan Bryla <JBR@finansraadet.dk> |
To | "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu> |
Subject | RE: st: RE: Robust instrumental variable regression |
Date | Fri, 14 Jan 2011 13:51:08 +0100 |
Thanks for that, Maarten - was not aware of this distinction in rreg :-) Apologies to Ramiro... Jan Bryla The Danish Bankers Association -----Original Message----- From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Maarten buis Sent: 14. januar 2011 13:41 To: statalist@hsphsun2.harvard.edu Subject: Re: st: RE: Robust instrumental variable regression --- Ramiro H. Gálvez asked: > I am using stata 11 and I'm having problems with outliers > in a 2SLS instrumental variable regression. Is there any > implementation in stata equivalent to rreg for > instrumental variable regression (like rivregress)? --- On Fri, 14/1/11, Jan Bryla answered: > > Could using the vce(robust) option when performing > > -ivregress- potentially solve you problem? No, -vce(robust)- is robust in a very different sense than -rreg-. When thinking of robust in terms of -rreg- you worry about the effect of outliers on the point estimates. Robust in the sense of -vce(robust)- has to do with the influence of deviations from model assumption on the standard error. Hope this helps, Maarten -------------------------- Maarten L. Buis Institut fuer Soziologie Universitaet Tuebingen Wilhelmstrasse 36 72074 Tuebingen Germany http://www.maartenbuis.nl -------------------------- * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/ * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/