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Results for criterions: Keyword: Social contract Modify search criterions 1 match Title «The battle of the swimmers». Illustration of a conflict between individual preferences and the collective interest Author COLLARD Luc, LOYER Frédéric Keywords Equilibrium, Experimental game theory, Social contract, The prisoner's dilemna Topics Decision Theory, Equilibrium, Game Theory, Social Psychology Abstract How do persons behave «in the flesh» when they are instructed to choose between the unsatisfactory caution of a selfish decision, and the risky satisfaction of an altruistic decision? We ask 64 adult sportsmen to play a typical game «the prisoner's dilemna» in the swimming pool. The "battle between the swimmers" shows that, the specialists of combat sport who are the most selfish used to the systematic fighting spirit. Their expected gain is greater than that of the altruistic players who are nevertheless driven by a respectable moral sense (p<0,05 in T of Student). In vivo, Nash equilibrium [1950] is stronger than Harsanyi equilibrium [1977]. Number 188, Winter 2009 Language   French Read the article Users rights : The entire journal is licensed under a Creative Commons license