4.0 Article

Technical note: Modified variance incorporating high-order moments in risk measure with Gram-Charlier returns

Journal

ENGINEERING ECONOMIST
Volume 67, Issue 3, Pages 218-233

Publisher

TAYLOR & FRANCIS INC
DOI: 10.1080/0013791X.2022.2078023

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Funding

  1. FAPA-Uniandes [PR.3.2016.2807]

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This paper introduces a new risk measure for portfolio choice and compares its performance with two related metrics. By taking into account investor attitudes towards skewness and kurtosis-related risks, the proposed methodology provides a more accurate description of portfolio risk. The results show the superiority of this approach under different risk tolerance parameters based on the minimum variance and Sharpe ratio criteria.
This paper introduces a new risk measure for portfolio choice and compares its performance with two related metrics, namely the behavioral variance and the modified variance by using a Taylor's expansion. The methodology for our proposal naturally incorporates investor attitudes to risk related to skewness and kurtosis by assuming a Gram-Charlier return distribution. The so-obtained risk measures represent a more reliable description of portfolio risk and encompass the cases where high-order moments are not relevant characteristics (i.e. under normality). Our results show the outperformance of our proposal for different risk tolerance parameters considering the minimum variance and Sharpe ratio criteria by employing random portfolio optimization technique for 11 sets of stocks.

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