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A single 'weight-lifting' game covers all kinds of games.


ABSTRACT: Game theory has been studied extensively to answer why cooperation is promoted in human and animal societies. All games are classified into five games: the Prisoner's Dilemma, chicken game (including hawk-dove game), stag hunt game and two trivial games of either all cooperation or all defect, which are studied separately. Here, we propose a new game that covers all five game categories: the weight-lifting game. The player choose either to (1) carry a weight (cooperate: pay a cost) or (2) pretend to carry it (defect: pay no cost). The probability of success in carrying the weight depends on the number of cooperators, and the players either gain the success reward or pay the failure penalty. All five game categories appear in this game depending on the success probabilities for the number of cooperators. We prove that this game is exactly equivalent to the combination of all five games in terms of a pay-off matrix. This game thus provides a unified framework for studying all five types of games.

SUBMITTER: Yamamoto T 

PROVIDER: S-EPMC6894607 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature

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A single 'weight-lifting' game covers all kinds of games.

Yamamoto Tatsuki T   Ito Hiromu H   Nii Momoka M   Okabe Takuya T   Morita Satoru S   Yoshimura Jin J  

Royal Society open science 20191120 11


Game theory has been studied extensively to answer why cooperation is promoted in human and animal societies. All games are classified into five games: the Prisoner's Dilemma, chicken game (including hawk-dove game), stag hunt game and two trivial games of either all cooperation or all defect, which are studied separately. Here, we propose a new game that covers all five game categories: the weight-lifting game. The player choose either to (1) carry a weight (cooperate: pay a cost) or (2) preten  ...[more]

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