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Article Dans Une Revue Financial Markets and Portfolio Management Année : 2018

Mean-variance and mean-semivariance portfolio selection: a multivariate nonparametric approach

Résumé

While univariate nonparametric estimation methods have been developed for estimat- ing returns in mean-downside risk portfolio optimization, the problem of handling possible cross-correlations in a vector of asset returns has not been addressed in port- folio selection. We present a novel multivariate nonparametric portfolio optimization procedure using kernel-based estimators of the conditional mean and the conditional median. The method accounts for the covariance structure information from the full set of returns. We also provide two computational algorithms to implement the esti- mators. Via the analysis of 24 French stock market returns, we evaluate the in-sample and out-of-sample performance of both portfolio selection algorithms against opti- mal portfolios selected by classical and univariate nonparametric methods for three highly different time periods and different levels of expected return. By allowing for cross-correlations among returns, our results suggest that the proposed multivariate nonparametric method is a useful extension of standard univariate nonparametric port- folio selection approaches.

Dates et versions

hal-02019135 , version 1 (14-02-2019)

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Hanen Ben Salah, Jan G. de Gooijer, Ali Gannoun, Mathieu Ribatet. Mean-variance and mean-semivariance portfolio selection: a multivariate nonparametric approach. Financial Markets and Portfolio Management, 2018, 32 (4), pp.419-436. ⟨10.1007/s11408-018-0317-4⟩. ⟨hal-02019135⟩
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