論文

2020年10月

Five rules for friendly rivalry in direct reciprocity

SCIENTIFIC REPORTS
  • Yohsuke Murase
  • ,
  • Seung Ki Baek

10
1
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1038/s41598-020-73855-x
出版者・発行元
NATURE RESEARCH

Direct reciprocity is one of the key mechanisms accounting for cooperation in our social life. According to recent understanding, most of classical strategies for direct reciprocity fall into one of two classes, 'partners' or 'rivals'. A 'partner' is a generous strategy achieving mutual cooperation, and a 'rival' never lets the co-player become better off. They have different working conditions: For example, partners show good performance in a large population, whereas rivals do in head-to-head matches. By means of exhaustive enumeration, we demonstrate the existence of strategies that act as both partners and rivals. Among them, we focus on a human-interpretable strategy, named 'CAPRI' after its five characteristic ingredients, i.e., cooperate, accept, punish, recover, and defect otherwise. Our evolutionary simulation shows excellent performance of CAPRI in a broad range of environmental conditions.


リンク情報
DOI
https://doi.org/10.1038/s41598-020-73855-x
arXiv
http://arxiv.org/abs/arXiv:2004.00261
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000615373100016&DestApp=WOS_CPL
URL
http://arxiv.org/abs/2004.00261v2
URL
http://arxiv.org/pdf/2004.00261v2 本文へのリンクあり
ID情報
  • DOI : 10.1038/s41598-020-73855-x
  • ISSN : 2045-2322
  • arXiv ID : arXiv:2004.00261
  • Web of Science ID : WOS:000615373100016

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