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st: 2-SLS with no covariates in 1-stage


From   Eva Batistatou <Evridiki.Batistatou@postgrad.manchester.ac.uk>
To   STATALIST <statalist@hsphsun2.harvard.edu>
Subject   st: 2-SLS with no covariates in 1-stage
Date   Mon, 3 Sep 2007 12:20:47 +0100

Dear friends,
I'd like your help!
ivreg in STATA fits a linear regression model using instrumental variables (or
two-stage least squares) of depvar on varlist1 and varlist2, using varlist_iv
(along with varlist1) as instruments for varlist2.Is there any option in ivreg
command for not using varlist1, along with varlist_iv, as instruments (I want
to keep out from the first-stage of the 2-SLS the varlist1)?

Thanks in advance!
Eva

-- 
Eva Batistatou
PhD Student
Biostatistics Group
Division of Epidemiology and Health Sciences
School of Medicine
University of Manchester
Tel: +44 (0) 161 275 5666
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