Quotation Okada, Isamu, Yamamoto, Hitoshi, Uchida, Satochi. 2020. Hybrid Assessment Scheme Based on the Stern-Judging Rule for Maintaining Cooperation under Indirect Reciprocity. Games. 11 (1)


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Abstract

Intensive studies on indirect reciprocity have explored rational assessment rules for maintaining cooperation and several have demonstrated the effects of the stern-judging rule. Uchida and Sasaki demonstrated that the stern-judging rule is not suitable for maintaining cooperative regimes in private assessment conditions while a public assessment system has been assumed in most studies. Although both assessment systems are oversimplified and society is most accurately represented by a mixture of these systems, little analysis has been reported on their mixture. Here, we investigated how much weight on the use of information originating from a public source is needed to maintain cooperative regimes for players adopting the stern-judging rule when players get information from both public and private sources. We did this by considering a hybrid-assessment scheme in which players use both assessment systems and by using evolutionary game theory. We calculated replicator equations using the expected payoffs of three strategies: unconditional cooperation, unconditional defection, and stern-judging rule adoption. Our analysis shows that the use of the rule helps to maintain cooperation if reputation information from a unique public notice board is used with more than a threshold probability. This hybrid-assessment scheme can be applied to other rules, including the simple-standing rule and the staying rule.

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Publication's profile

Status of publication Published
Affiliation WU
Type of publication Journal article
Journal Games
Language English
Title Hybrid Assessment Scheme Based on the Stern-Judging Rule for Maintaining Cooperation under Indirect Reciprocity
Volume 11
Number 1
Year 2020
Reviewed? Y
URL https://www.mdpi.com/2073-4336/11/1/13
DOI https://doi.org/10.3390/g11010013
Open Access Y
Open Access Link https://www.mdpi.com/2073-4336/11/1/13#

Associations

People
Okada, Isamu (Details)
Yamamoto, Hitoshi (Former researcher)
External
Uchida, Satochi (RINRI Institute, Japan)
Organization
Information Systems and Operations DP (Details)
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