IVHETTEST: Stata module to perform Pagan-Hall and related heteroskedasticity tests after IV

Mark Schaffer ()

Statistical Software Components from Boston College Department of Economics

Abstract: ivhettest performs various flavors of Pagan and Hall's (1983) tests of heteroskedasticity for instrumental variables (IV) estimation. It will also perform the related standard heteroskedasticity tests of Breusch-Pagan, Godfrey, Cook-Weisberg, White and Koenker after estimation by OLS or IV. These are tests of whether there is heteroskedasticity in the estimated regression that is related to one or more indicator variables. The test flavors vary according to the choice of indicator variables and the choice of test statistics. Under the null of no heteroskedasticity, the test statistic is distributed as chi-sq with degrees of freedom = number of indicator variables. This is version 1.1.7 of ivhettest, updated from that published in Stata Journal, 3(1).

Language: Stata
Requires: Stata version 7.0
Keywords: instrumental variables; heteroskedasticity (search for similar items in EconPapers)
Date: 2002-10-20, Revised 2009-12-01
Note: This module may be installed from within Stata by typing "ssc install ivhettest". Windows users should not attempt to download these files with a web browser.

Downloads: (external link)
http://fmwww.bc.edu/repec/bocode/i/ivhettest.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/i/ivhettest.hlp help file (text/plain)

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Persistent link: http://EconPapers.repec.org/RePEc:boc:bocode:s428801

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