Statistically Efficient Construction of α-Risk-Minimizing Portfolio

We propose a semiparametrically efficient estimator for α-risk-minimizing portfolio weights. Based on the work of Bassett et al. (2004), an α-risk-minimizing portfolio optimization is formulated as a linear quantile regression problem. The quantile regression method uses a pseudolikelihood based on...

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Bibliographic Details
Main Authors: Hiroyuki Taniai, Takayuki Shiohama
Format: Article
Language:English
Published: Asia University 2012-01-01
Series:Advances in Decision Sciences
Online Access:http://dx.doi.org/10.1155/2012/980294
Description
Summary:We propose a semiparametrically efficient estimator for α-risk-minimizing portfolio weights. Based on the work of Bassett et al. (2004), an α-risk-minimizing portfolio optimization is formulated as a linear quantile regression problem. The quantile regression method uses a pseudolikelihood based on an asymmetric Laplace reference density, and asymptotic properties such as consistency and asymptotic normality are obtained. We apply the results of Hallin et al. (2008) to the problem of constructing α-risk-minimizing portfolios using residual signs and ranks and a general reference density. Monte Carlo simulations assess the performance of the proposed method. Empirical applications are also investigated.
ISSN:2090-3359
2090-3367