Cheng, Y.; Escobar-Anel, M. Optimal Consumption and Robust Portfolio Choice for the 3/2 and 4/2 Stochastic Volatility Models. Mathematics2023, 11, 4020.
Cheng, Y.; Escobar-Anel, M. Optimal Consumption and Robust Portfolio Choice for the 3/2 and 4/2 Stochastic Volatility Models. Mathematics 2023, 11, 4020.
Cheng, Y.; Escobar-Anel, M. Optimal Consumption and Robust Portfolio Choice for the 3/2 and 4/2 Stochastic Volatility Models. Mathematics2023, 11, 4020.
Cheng, Y.; Escobar-Anel, M. Optimal Consumption and Robust Portfolio Choice for the 3/2 and 4/2 Stochastic Volatility Models. Mathematics 2023, 11, 4020.
Abstract
In this work, optimal consumption and investment strategies are derived for risk-averse investors under the 4/2 stochastic volatility class of models. We work under an expected utility (EUT) framework and consider a Constant Relative Risk Aversion (CRRA) investor, who might also be ambiguity-averse. The corresponding Hamilton-Jacobi-Bellman (HJB) and HJB-Isaacs (HJBI) equations are solved in closed-form for a subset of the parametric space and under some restrictions on the portfolio setting, for complete markets. Conditions for proper changes of measure and well defined solutions are provided. These are the first analytical solutions for the 4/2 stochastic volatility model and the embedded 3/2 model for the type of excess returns established in .
Keywords
4/2 stochastic volatility model; CRRA utility; optimal portfolio choice and consumption; Heston’s process; 3/2 process
Subject
Computer Science and Mathematics, Applied Mathematics
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
