Influence of opinion dynamics on the evolution of games
Floriana Gargiulo, Jose J. Ramasco

TL;DR
This paper investigates how opinion dynamics influence the evolution of strategies in games, showing that coupling opinions with game strategies leads to new fixed points and resilience effects not seen in traditional models.
Contribution
It introduces a coupled model of opinion dynamics and game evolution, revealing novel fixed points and resilience phenomena influenced by social interactions.
Findings
Coupled model exhibits different fixed points from separate models.
Resilience of cooperation fraction to network topology.
Presence of extremists affects opinion and strategy dynamics.
Abstract
Under certain circumstances such as lack of information or bounded rationality, human players can take decisions on which strategy to choose in a game on the basis of simple opinions. These opinions can be modified after each round by observing own or others payoff results but can be also modified after interchanging impressions with other players. In this way, the update of the strategies can become a question that goes beyond simple evolutionary rules based on fitness and become a social issue. In this work, we explore this scenario by coupling a game with an opinion dynamics model. The opinion is represented by a continuous variable that corresponds to the certainty of the agents respect to which strategy is best. The opinions transform into actions by making the selection of an strategy a stochastic event with a probability regulated by the opinion. A certain regard for the previous…
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