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Consistent selection of the actual model in regression analysis

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  • Gilles Ducharme

Abstract

In regression analysis, a best subset of regressors is usually selected by minimizing Mallows's C statistic or some other equivalent criterion, such as the Akaike lambda information criterion or cross-validation. It is known that the resulting procedure suffers from a lack of consistency that can lead to a model with too many variables. For this reason, corrections have been proposed that yield consistent procedures. The object of this paper is to show that these corrected criteria, although asymptotically consistent, are usually too conservative for finite sample sizes. The paper also proposes a new correction of Mallows's statistic that yields better results. A simulation study is conducted that shows that the proposed criterion performs well in a variety of situations.

Suggested Citation

  • Gilles Ducharme, 1997. "Consistent selection of the actual model in regression analysis," Journal of Applied Statistics, Taylor & Francis Journals, vol. 24(5), pages 549-558.
    • Handle: RePEc:taf:japsta:v:24:y:1997:i:5:p:549-558
    DOI: 10.1080/02664769723530
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    Cited by:

    1. Galbraith, John W. & Zinde-Walsh, Victoria, 2004. "Évaluation de critères d’information pour les modèles de séries chronologiques," L'Actualité Economique, Société Canadienne de Science Economique, vol. 80(2), pages 207-227, Juin-Sept.

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