Evolutionary Game Model of Group Choice Dilemmas on Hypergraphs

Civilini, Andrea; Anbarci, Nejat; Latora, Vito

Abstract

We introduce an evolutionary game on hypergraphs in which decisions between a risky alternative and a safe one are taken in social groups of different sizes. The model naturally reproduces choice shifts, namely the differences between the preference of individual decision makers and the consensual choice of a group, that have been empirically observed in choice dilemmas. In particular, a deviation from the Nash equilibrium toward the risky strategy occurs when the dynamics takes place on heterogeneous hypergraphs. These results can explain the emergence of irrational herding and radical behaviors in social groups.

Citation

Civilini, A., Anbarci, N., & Latora, V. (2021). Evolutionary Game Model of Group Choice Dilemmas on Hypergraphs. Physical Review Letters, 127(26), Article 268301. https://doi.org/10.1103/physrevlett.127.268301

• Journal Article Type: Article
• Acceptance Date: Nov 22, 2021
• Online Publication Date: Dec 20, 2021
• Publication Date: Dec 24, 2021
• Deposit Date: Apr 22, 2022
• Publicly Available Date: Apr 22, 2022
• Journal: Physical Review Letters
• Print ISSN: 0031-9007
• Electronic ISSN: 1079-7114
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 127
• Issue: 26
• Article Number: 268301
• DOI: https://doi.org/10.1103/physrevlett.127.268301
• Public URL: https://durham-repository.worktribe.com/output/1209559