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JOURNALS // Upravlenie Bol'shimi Sistemami // Archive

UBS, 2023 Issue 106, Pages 172–183 (Mi ubs1173)

Control in Social and Economic Systems

An evolutionary game with environmental feedback and players' opinions

E. Lorits, E. A. Gubar

Saint Petersburg State University, St. Petersburg

Abstract: Evolutionary games are a developing sub-field of game theory. This branch of game theory is used in the study of the adaptation of large, but finite, populations of agents to changes in the environment. It assumes that each agent has no significant influence on the system. Many scientific areas use the theory of evolutionary games. In particular, it is used in biology, medicine and the modelling of wireless networks. In this paper we study an evolutionary game with two levels of interaction between population agents. At the first level, changes in the population state depend on changes in the environment and on increasing or decreasing the resources available to the agents. At the second level, the population's state changes according to how the agents evaluate the state of the environment. These levels make up a decision-making structure with two levels. A change in one parameter of the system, for example the state of the environment, causes a change in the other elements of the system, that is, a change in the state of the population and the opinions of the agents. The study involves the analysis of a modified evolutionary game taking into account the influence of the environment and the opinions of the agents. It also involves the development of computational methods in MATLAB and two sets of numerical experiments.

Keywords: evolutionary games, opinion dynamics, replicative dynamics, imitation dynamics

UDC: 519.83
BBK: 22.18

Received: August 30, 2023
Published: November 30, 2023

DOI: 10.25728/ubs.2023.106.6



© Steklov Math. Inst. of RAS, 2024