Dynamic intertemporal utility optimization by means of Riccati transformation of Hamilton–Jacobi–Bellman equation
In this paper we investigate a dynamic stochastic portfolio optimization problem involving both the expected terminal utility and intertemporal utility maximization. We solve the problem by means of a solution to a fully nonlinear evolutionary Hamilton–Jacobi–Bellman (HJB) equation. We propose the s...
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Published in | Japan journal of industrial and applied mathematics Vol. 36; no. 2; pp. 497 - 519 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
Tokyo
Springer Japan
01.07.2019
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | In this paper we investigate a dynamic stochastic portfolio optimization problem involving both the expected terminal utility and intertemporal utility maximization. We solve the problem by means of a solution to a fully nonlinear evolutionary Hamilton–Jacobi–Bellman (HJB) equation. We propose the so-called Riccati method for transformation of the fully nonlinear HJB equation into a quasi-linear parabolic equation with non-local terms involving the intertemporal utility function. As a numerical method we propose a semi-implicit scheme in time based on a finite volume approximation in the spatial variable. By analyzing an explicit traveling wave solution we show that the numerical method is of the second experimental order of convergence. As a practical application we compute optimal strategies for a portfolio investment problem motivated by market financial data of German DAX 30 Index and show the effect of considering intertemporal utility on optimal portfolio selection. |
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ISSN: | 0916-7005 1868-937X |
DOI: | 10.1007/s13160-019-00349-3 |