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Dynamic programming principle for optimal control of uncertain random differential equations and its application to optimal portfolio selection

https://doi.org/10.26794/2308-944X-2024-12-3-74-85

Abstract

This study aimed to examine an uncertain stochastic optimal control problem premised on an uncertain stochastic process. The proposed approach is used to solve an optimal portfolio selection problem. This paper’s research is relevant because it outlines the procedure for solving optimal control problems in uncertain random environments. We implement Bellman’s principle of optimality method in dynamic programming to derive the principle of optimality. Then the resulting Hamilton-Jacobi-Bellman equation (the equation of optimality in uncertain stochastic optimal control) is used to solve a proposed portfolio selection problem. The results of this study show that the dynamic programming principle for optimal control of uncertain stochastic differential equations can be applied in optimal portfolio selection. Also, the study results indicate that the optimal fraction of investment is independent of wealth. The main conclusion of this study is that, in Itô-Liu financial markets, the dynamic programming principle for optimal control of uncertain stochastic differential equations can be applied in solving the optimal portfolio selection problem.

About the Authors

J. Chirima
University of Malawi
Malawi

Justin Chirima —PhD in Mathematics of Finance, Lecturer, Department of Mathematical Sciences

Zomba



F. R. Matenda
University of KwaZulu-Natal
South Africa

Frank Ranganai Matenda — PhD in Finance, Postdoctoral Research Fellow, School of Accounting, Economics and Finance

Durban



E. Chikodza
University of Botswana
Botswana

Eriyoti Chikodza —PhD in Mathematics of Finance, Senior Lecturer, Department of Mathematics

Gaborone



M. Sibanda
University of KwaZulu-Natal
South Africa

Mabutho Sibanda — PhD in Finance, Professor and Head of School, School of Accounting, Economics and Finance

Durban



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Review

For citations:


Chirima J., Matenda F.R., Chikodza E., Sibanda M. Dynamic programming principle for optimal control of uncertain random differential equations and its application to optimal portfolio selection. Review of Business and Economics Studies. 2024;12(3):74-85. https://doi.org/10.26794/2308-944X-2024-12-3-74-85



ISSN 2308-944X (Print)
ISSN 2311-0279 (Online)