Abstract:
varlag reports various statistics that are meant to help select the proper lag structure to use in the estimation of Vector autoregressions (VARs) and Error Correction Models (ECMs). For each lag length, varlag reports the Multivariate portmanteau (Ljung-Box) statistic for white noise residuals, p-values from Omnibus tests of multivariate normality of the residuals, as well as the Breusch-Pagan statistic for the independence of residuals between equations. varlag also performs likelihood ratio tests to test successive null hypotheses of smaller lag length. This package contains bpagan, bgtest, vecar, and vececm, all of which are required by varlag.
Language: Stata Requires: Stata version 7.0 Keywords:vector autoregression; Q test; omnibus test; Breusch-Pagan test (search for similar items in EconPapers) Date: 2002-05-24, Revised 2003-01-08 Note: This module may be installed from within Stata by typing "ssc install varlag". Windows users should not attempt to download these files with a web browser.
More software in Statistical Software Components from Boston College Department of Economics Address: Boston College, 140 Commonwealth Avenue, Chestnut Hill MA 02467 USA Contact information at EDIRC. Series data maintained by Christopher F Baum ().
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