Mathematical modeling and optimal control of the impact of rumors on the banking crisis

The bank run phenomenon, mostly due to rumor spread about the financial health of given financial institutions, is prejudicious to the stability of financial systems. In this paper, by using the epidemiological approach, we propose a nonlinear model for describing the impact of rumor on the banking...

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Main Authors: Tadmon Calvin, Njike-Tchaptchet Eric Rostand
Format: Article
Language:English
Published: De Gruyter 2022-05-01
Series:Demonstratio Mathematica
Subjects:
Online Access:https://doi.org/10.1515/dema-2022-0007
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author Tadmon Calvin
Njike-Tchaptchet Eric Rostand
author_facet Tadmon Calvin
Njike-Tchaptchet Eric Rostand
author_sort Tadmon Calvin
collection DOAJ
description The bank run phenomenon, mostly due to rumor spread about the financial health of given financial institutions, is prejudicious to the stability of financial systems. In this paper, by using the epidemiological approach, we propose a nonlinear model for describing the impact of rumor on the banking crisis spread. We establish conditions under which the crisis dies out or remains permanent. We also solve an optimal control problem focusing on the minimization, at the lowest cost, of the number of stressed banks, as well as the number of banks undergoing the restructuring process. Numerical simulations are performed to illustrate theoretical results obtained.
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spelling doaj.art-6f9877ac1e2d439e88cf2176de55f74c2022-12-22T03:50:42ZengDe GruyterDemonstratio Mathematica2391-46612022-05-015519011810.1515/dema-2022-0007Mathematical modeling and optimal control of the impact of rumors on the banking crisisTadmon Calvin0Njike-Tchaptchet Eric Rostand1Department of Mathematics and Computer Science, Faculty of Science, University of Dschang, P.O. Box 67, Dschang-Cameroon, CameroonDepartment of Mathematics and Computer Science, Faculty of Science, University of Dschang, P.O. Box 67, Dschang-Cameroon, CameroonThe bank run phenomenon, mostly due to rumor spread about the financial health of given financial institutions, is prejudicious to the stability of financial systems. In this paper, by using the epidemiological approach, we propose a nonlinear model for describing the impact of rumor on the banking crisis spread. We establish conditions under which the crisis dies out or remains permanent. We also solve an optimal control problem focusing on the minimization, at the lowest cost, of the number of stressed banks, as well as the number of banks undergoing the restructuring process. Numerical simulations are performed to illustrate theoretical results obtained.https://doi.org/10.1515/dema-2022-0007nonautonomous differential equationbanking crisisrumor spreadoptimal control91g8034d0534h05
spellingShingle Tadmon Calvin
Njike-Tchaptchet Eric Rostand
Mathematical modeling and optimal control of the impact of rumors on the banking crisis
Demonstratio Mathematica
nonautonomous differential equation
banking crisis
rumor spread
optimal control
91g80
34d05
34h05
title Mathematical modeling and optimal control of the impact of rumors on the banking crisis
title_full Mathematical modeling and optimal control of the impact of rumors on the banking crisis
title_fullStr Mathematical modeling and optimal control of the impact of rumors on the banking crisis
title_full_unstemmed Mathematical modeling and optimal control of the impact of rumors on the banking crisis
title_short Mathematical modeling and optimal control of the impact of rumors on the banking crisis
title_sort mathematical modeling and optimal control of the impact of rumors on the banking crisis
topic nonautonomous differential equation
banking crisis
rumor spread
optimal control
91g80
34d05
34h05
url https://doi.org/10.1515/dema-2022-0007
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