ivvif extends Stata's official vif/estat vif command, which reports variance inflation factors. It differs in two ways. As well as working after regress, it can run after instrumented regressions done with ivreg or ivreg2. In this case, it projects regressors onto instruments before computing VIFs. In other words, it reports the VIFs for the second stage of two-stage least squares. The other difference is that it makes the results available in a return matrix, named "vif", along with vif's return macros, which can ease working with the results in Stata code.
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Publisher Info
Software component provided by Boston College Department of Economics in its series Statistical Software Components with number
S456301.
Size: Programming language: Stata Requires: Stata version 7.0 Date of creation: 06 Oct 2005 Date of revision:
26 Mar 2007 Handle: RePEc:boc:bocode:s456301
Note: This module may be installed from within Stata by typing "ssc install ivvif". Windows users should not attempt to download these files with a web browser. Contact details of provider: Postal: Boston College, 140 Commonwealth Avenue, Chestnut Hill MA 02467 USA Phone: 617-552-3670 Fax: +1-617-552-2308 Email: Web page: http://fmwww.bc.edu/EC/ More information through EDIRC
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