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Related papers: Indirect reciprocity with trinary reputations

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Indirect reciprocity is a key explanation for the exceptional magnitude of cooperation among humans. This literature suggests that a large proportion of human cooperation is driven by social norms and individuals' incentives to maintain a…

Physics and Society · Physics 2024-11-25 Yohsuke Murase , Christian Hilbe

Indirect reciprocity is a key mechanism that promotes cooperation in social dilemmas by means of reputation. Although it has been a common practice to represent reputations by binary values, either `good' or `bad', such a dichotomy is a…

Populations and Evolution · Quantitative Biology 2022-01-17 Yohsuke Murase , Minjae Kim , Seung Ki Baek

Reputation is a powerful mechanism to enforce cooperation among unrelated individuals through indirect reciprocity, but it suffers from disagreement originating from private assessment, noise, and incomplete information. In this work, we…

Populations and Evolution · Quantitative Biology 2021-07-12 Sanghun Lee , Yohsuke Murase , Seung Ki Baek

Cooperation in groups underpins collective responses to challenges from climate governance to public goods provision, yet how moral evaluation sustains it remains poorly understood. Indirect reciprocity -- cooperating to build a good…

Physics and Society · Physics 2026-04-29 Ming Wei , Xin Wang , Junyu Lu , Longzhao Liu , Yishen Jiang , Hongwei Zheng , Shaoting Tang , Feng Fu

Indirect reciprocity is a mechanism that explains large-scale cooperation in human societies. In indirect reciprocity, an individual chooses whether or not to cooperate with another based on reputation information, and others evaluate the…

Populations and Evolution · Quantitative Biology 2023-10-20 Yuma Fujimoto , Hisashi Ohtsuki

Indirect reciprocity is a mechanism for cooperation in social dilemma situations, in which an individual is motivated to help another to acquire a good reputation and receive help from others afterwards. Ingroup favoritism is another aspect…

Physics and Society · Physics 2012-11-20 Mitsuhiro Nakamura , Naoki Masuda

Previous research has shown how indirect reciprocity can promote cooperation through evolutionary game theoretic models. Most work in this field assumes a separation of time-scales: individuals' reputations equilibrate at a fast time scale…

Populations and Evolution · Quantitative Biology 2024-12-23 Bryce Morsky , Joshua B. Plotkin , Erol Akçay

Reputation is one of key mechanisms to maintain human cooperation, but its analysis gets complicated if we consider the possibility that reputation does not reach consensus because of erroneous assessment. The difficulty is alleviated if we…

Physics and Society · Physics 2022-07-13 Sanghun Lee , Yohsuke Murase , Seung Ki Baek

Evaluation relationships are pivotal for maintaining a cooperative society. A formation of the evaluation relationships has been discussed in terms of indirect reciprocity, by modeling dynamics of good or bad reputations among individuals.…

Physics and Society · Physics 2022-05-11 Yuma Fujimoto , Hisashi Ohtsuki

Indirect reciprocity unveils how social cooperation is founded upon moral systems. Within the frame of dyadic games based on individual reputations, the "leading-eight" strategies distinguish themselves in promoting and sustaining…

Physics and Society · Physics 2024-10-22 Ming Wei , Xin Wang , Longzhao Liu , Hongwei Zheng , Yishen Jiang , Yajing Hao , Zhiming Zheng , Feng Fu , Shaoting Tang

Indirect reciprocity is a mechanism by which individuals cooperate with those who have cooperated with others. This creates a regime in which repeated interactions are not necessary to incent cooperation (as would be required for direct…

Populations and Evolution · Quantitative Biology 2023-08-08 Victor Vikram Odouard , Michael Holton Price

Indirect reciprocity in which players cooperate with unacquainted other players having good reputations is a mechanism for cooperation in relatively large populations subjected to social dilemma situations. When the population has group…

Physics and Society · Physics 2012-07-30 Naoki Masuda

Indirect reciprocity is one of the main mechanisms to explain the emergence and sustainment of altruism in societies. The standard approach to indirect reciprocity are reputation models. These are games in which players base their decisions…

Physics and Society · Physics 2013-05-29 Luis A. Martinez-Vaquero , José A. Cuesta

Indirect reciprocity promotes cooperation by allowing individuals to help others based on reputation rather than direct reciprocation. Because it relies on accurate reputation information, its effectiveness can be undermined by information…

Physics and Society · Physics 2026-05-04 Heejeong Kim , Yohsuke Murase

Indirect reciprocity is a key mechanism for large-scale cooperation. This mechanism captures the insight that in part, people help others to build and maintain a good reputation. To enable such cooperation, appropriate social norms are…

Populations and Evolution · Quantitative Biology 2025-09-12 Nikoleta E. Glynatsi , Christian Hilbe , Yohsuke Murase

Indirect reciprocity maintains cooperation in stranger societies by mapping individual behaviors onto reputation signals via social norms. Existing theoretical frameworks assume static environments with constant resources and fixed payoff…

Physics and Society · Physics 2026-02-04 Yishen Jiang , Xin Wang , Ming Wei , Wenqiang Zhu , Longzhao Liu , Hongwei Zheng , Shaoting Tang

Indirect reciprocity is a mechanism that explains large-scale cooperation in humans. In indirect reciprocity, individuals use reputations to choose whether or not to cooperate with a partner and update others' reputations. A major question…

Computer Science and Game Theory · Computer Science 2023-05-31 Yuma Fujimoto , Hisashi Ohtsuki

Indirect reciprocity is a foundational mechanism of human cooperation. Existing models of indirect reciprocity fail to robustly support social cooperation: image scoring models fail to provide robust incentives, while social standing models…

Populations and Evolution · Quantitative Biology 2019-10-10 Daniel Clark , Drew Fudenberg , Alexander Wolitzky

The cooperation mechanism of indirect reciprocity has been studied by making multiple variations of its parts. This research proposes a new variant of Nowak and Sigmund model, focused on agents' attitude; it is called Individualistic…

Indirect reciprocity is a major mechanism in the maintenance of cooperation among unrelated individuals. Indirect reciprocity leads to conditional cooperation according to social norms that discriminate the good (those who deserve to be…

Populations and Evolution · Quantitative Biology 2017-02-07 Tatsuya Sasaki , Isamu Okada , Yutaka Nakai
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