Nonlinear portfolio selection using approximate parametric Value-at-Risk
Nonlinear portfolio selection using approximate parametric Value-at-Risk
复制标题
使用近似参数风险值进行非线性投资组合选择
DOI:
10.1016/j.jbankfin.2013.01.036
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发表时间:
2013-06
期刊:
影响因子:
--
通讯作者:
Li D.
中科院分区:
文献类型:
--
作者:
Cui X. T.;Zhu S. S.;Sun X. L.;Li D.
As the skewed return distribution is a prominent feature in nonlinear portfolio selection problems which involve derivative assets with nonlinear payoff structures, Value-at-Risk (VaR) is particularly suitable to serve as a risk measure in nonlinear portfolio selection. Unfortunately, the nonlinear portfolio selection formulation using VaR risk measure is in general a computationally intractable optimization problem. We investigate in this paper nonlinear portfolio selection models using approximate parametric Value-at-Risk. More specifically, we use first-order and second-order approximations of VaR for constructing portfolio selection models, and show that the portfolio selection models based on Delta-only, Delta–Gamma-normal and worst-case Delta–Gamma VaR approximations can be reformulated as second-order cone programs, which are polynomially solvable using interior-point methods. Our simulation and empirical results suggest that the model using Delta–Gamma-normal VaR approximation performs the best in terms of a balance between approximation accuracy and computational efficiency.
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