Benefits of intervention in spatial public goods games

Publication date: Available online 4 October 2018Source: Physics Letters AAuthor(s): Luhe Yang, Zhaojin Xu, Lianzhong Zhang, Duoxing YangAbstractThe anarchy driven by private punishment is inopportune and inappropriate in modern human societies. It is necessary for a person to appeal to a higher authority such as the police so that a society can maintain more stable. We introduce strategy intervention instead of punishment in spatial public goods game. Some defectors are forced to contribute to the common pool. We show how strategy intervention affects cooperation of a population. Interestingly, weak intervention restrains the impact of spatial reciprocity leading to a lower level of cooperation or even a full defection state. Such phenomena are in contrast to ordinary intuitions. Intervention is enforced by a higher authority which avoids the second-order problems. Furthermore, high synergy factor and proper intervention has a mutual impact on increasing group incomes. We highlight the importance of institutional intervention in a stable society.
Source: Physics Letters A - Category: Physics Source Type: research
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