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Selecting a Regression Saturated by Indicators

David Hendry (), Soren Johansen () and Carlos Santos ()

No 07-26, Discussion Papers from University of Copenhagen. Department of Economics

Abstract: We consider selecting a regression model, using a variant of Gets, when there are more variables than observations, in the special case that the variables are impulse dummies (indicators) for every observation. We show that the setting is unproblematic if tackled appropriately, and obtain the finite-sample distribution of estimators of the mean and variance in a simple location-scale model under the null that no impulses matter. A Monte Carlo simulation confirms the null distribution, and shows power against an alternative of interest.

Keywords: indicators; regression saturation; subset selection; model selection (search for similar items in EconPapers)
JEL-codes: C51 C22 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-ecm
Date: 2007-08
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