Model averaging by jackknife criterion in models with dependent data

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

55 Scopus Citations
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Detail(s)

Original languageEnglish
Pages (from-to)82-94
Journal / PublicationJournal of Econometrics
Volume174
Issue number2
Publication statusPublished - Jun 2013

Abstract

The past decade witnessed a literature on model averaging by frequentist methods. For the most part, the asymptotic optimality of various existing frequentist model averaging estimators has been established under i.i.d. errors. Recently, Hansen and Racine [Hansen, B.E., Racine, J., 2012. Jackknife model averaging. Journal of Econometrics 167, 38-46] developed a jackknife model averaging (JMA) estimator, which has an important advantage over its competitors in that it achieves the lowest possible asymptotic squared error under heteroscedastic errors. In this paper, we broaden Hansen and Racine's scope of analysis to encompass models with (i) a non-diagonal error covariance structure, and (ii) lagged dependent variables, thus allowing for dependent data. We show that under these set-ups, the JMA estimator is asymptotically optimal by a criterion equivalent to that used by Hansen and Racine. A Monte Carlo study demonstrates the finite sample performance of the JMA estimator in a variety of model settings. © 2013 Elsevier B.V. All rights reserved.

Research Area(s)

  • Asymptotic optimality, Autocorrelation, Cross-validation, Lagged dependent variables, Model averaging, Squared error