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Collective Strategies With a Master-Slave Mechanism Dominate in Spatial-Iterated Prisoner's Dilemma

Collective Strategies With a Master-Slave Mechanism Dominate in Spatial-Iterated Prisoner's Dilemma

Jiawei Li, Robert Duncan, Jingpeng Li, Ruibin Bai
Copyright: © 2021 |Volume: 12 |Issue: 4 |Pages: 12
ISSN: 1947-9263|EISSN: 1947-9271|EISBN13: 9781799861355|DOI: 10.4018/IJSIR.2021100103
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MLA

Li, Jiawei, et al. "Collective Strategies With a Master-Slave Mechanism Dominate in Spatial-Iterated Prisoner's Dilemma." IJSIR vol.12, no.4 2021: pp.45-56. http://doi.org/10.4018/IJSIR.2021100103

APA

Li, J., Duncan, R., Li, J., & Bai, R. (2021). Collective Strategies With a Master-Slave Mechanism Dominate in Spatial-Iterated Prisoner's Dilemma. International Journal of Swarm Intelligence Research (IJSIR), 12(4), 45-56. http://doi.org/10.4018/IJSIR.2021100103

Chicago

Li, Jiawei, et al. "Collective Strategies With a Master-Slave Mechanism Dominate in Spatial-Iterated Prisoner's Dilemma," International Journal of Swarm Intelligence Research (IJSIR) 12, no.4: 45-56. http://doi.org/10.4018/IJSIR.2021100103

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Abstract

How cooperation emerges and persists in a population of selfish agents is a fundamental question in evolutionary game theory. The research shows that collective strategies with master-slave mechanism (CSMSM) defeat tit-for-tat and other well-known strategies in spatial iterated prisoner's dilemma. A CSMSM identifies kin members by means of a handshaking mechanism. If the opponent is identified as non-kin, a CSMSM will always defect. Once two CSMSMs meet, they play master and slave roles. A mater defects and a slave cooperates in order to maximize the master's payoff. CSMSM outperforms non-collective strategies in spatial IPD even if there is only a small cluster of CSMSMs in the population. The existence and performance of CSMSM in spatial iterated prisoner's dilemma suggests that cooperation first appears and persists in a group of collective agents.

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