Avoiding or restricting defectors in public goods games?

What is it about?

Public goods, like food sharing and social health systems, may prosper when prior agreements to contribute are feasible and all participants commit to do so. Yet, free-riders may exploit such agreements, requiring then committers to decide whether to enact the public good when others do not commit. So deciding removes all benefits from free-riders but also from those willing to establish the beneficial resource. New analytical findings suggest that implementing extra measures, delimiting benefi

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