Who Saves us From Risk? Altruists Promote Cooperation in a Public Investment Game

Le résumé fourni par la source

Providing commons in the risky world is crucial for human survival, however, suffers more from the "free-riding" problem. Here, we proposed a solution that limits the access of the resource to an agent and tested its efficiency with a novel public investment game. On each trial, all group members invest in an agent responsible for a gamble and distribution. Resources are distributed evenly between non-agent group members after the agent extracts for him/herself. In 3 laboratory experiments (n = 704), we found that, as an agent, many participants extracted fewer resources than others. This altruistic distribution strategy improved cooperation levels. Furthermore, this cooperation-promoting effect could be spread to selfish agents who are in the same group as the altruistic agent and was replicated in a one-shot setting. We proposed that, when the commons are under risk, this distribution solution serves as a better alternative to the well-documented sanction solutions.

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