Do We Really Need Both BEKK and DCC? A Tale of Two Multivariate GARCH Models

Massimiliano Caporin and Michael McAleer

No 738, KIER Working Papers from Kyoto University, Institute of Economic Research

Abstract: The management and monitoring of very large portfolios of financial assets are routine for many individuals and organizations. The two most widely used models of conditional covariances and correlations in the class of multivariate GARCH models are BEKK and DCC. It is well known that BEKK suffers from the archetypal "curse of dimensionality", whereas DCC does not. It is argued in this paper that this is a misleading interpretation of the suitability of the two models for use in practice. The primary purpose of this paper is to analyze the similarities and dissimilarities between BEKK and DCC, both with and without targeting, on the basis of the structural derivation of the models, the availability of analytical forms for the sufficient conditions for existence of moments, sufficient conditions for consistency and asymptotic normality of the appropriate estimators, and computational tractability for ultra large numbers of financial assets. Based on theoretical considerations, the paper sheds light on how to discriminate between BEKK and DCC in practical applications.

Keywords: Conditional correlations; conditional covariances; diagonal models; scalar models; targeting; asymptotic theory. (search for similar items in EconPapers)
JEL-codes: C32 G11 G17 G32 (search for similar items in EconPapers)
Pages: 27pages
Date: 2010-11
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Citations: View citations in EconPapers (34)

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http://www.kier.kyoto-u.ac.jp/DP/DP738.pdf (application/pdf)

Related works:
Journal Article: DO WE REALLY NEED BOTH BEKK AND DCC? A TALE OF TWO MULTIVARIATE GARCH MODELS (2012)
Working Paper: Do We Really Need Both BEKK and DCC? A Tale of Two Multivariate GARCH Models (2010)
Working Paper: Do We Really Need Both BEKK and DCC? A Tale of Two Multivariate GARCH Models (2010)
Working Paper: Do We Really Need Both BEKK and DCC? A Tale of Two Multivariate GARCH Models (2010)
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