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• Edoardo Otranto

The asset allocation decision is often considered as a trade-off between maximizing the expected return of a portfolio and minimizing the portfolio risk. The riskiness is evaluated in terms of variance of the portfolio return, so that it is fundamental to consider correctly the variance of its components and their correlations. The evidence of the heteroskedastic behavior of the returns and the time-varying relationships among the portfolio components have recently shifted attention to the multivariate GARCH models with time varying correlation. In this work we insert a particular Markov Switching dynamics in some Dynamic Correlation models to consider the abrupt changes in correlations affecting the assets in different ways. This class of models is very general and provides several specifications, constraining some coefficients. The models are applied to solve a sectorial asset allocation problem and are compared with alternative models.

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Paper provided by Centre for North South Economic Research, University of Cagliari and Sassari, Sardinia in its series Working Paper CRENoS with number 200810.

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Date of creation: 2008
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Handle: RePEc:cns:cnscwp:200810

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Related research

Keywords: Markov Chain; Multivariate GARCH; portfolio performance; switching parameters; volatility.;

This paper has been announced in the following NEP Reports:

• NEP-ALL-2008-07-30 (All new papers)
• NEP-FMK-2008-07-30 (Financial Markets)
• NEP-IFN-2008-07-30 (International Finance)
• NEP-ORE-2008-07-30 (Operations Research)

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This page was last updated on 2009-11-27.