Local reputation, local selection, and the leading eight norms

Abstract Humans are capable of solving cooperation problems following social norms. Social norms dictate appropriate behaviour and judgement on others in response to their previous actions and reputation. Recently, the so-called leading eight norms have been identified from many potential social nor...

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Autores principales:	Shirsendu Podder, Simone Righi, Károly Takács
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c82962adf28c4fd4b8f796d9ca8fa027
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spelling	oai:doaj.org-article:c82962adf28c4fd4b8f796d9ca8fa0272021-12-02T16:45:41ZLocal reputation, local selection, and the leading eight norms10.1038/s41598-021-95130-32045-2322https://doaj.org/article/c82962adf28c4fd4b8f796d9ca8fa0272021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-95130-3https://doaj.org/toc/2045-2322Abstract Humans are capable of solving cooperation problems following social norms. Social norms dictate appropriate behaviour and judgement on others in response to their previous actions and reputation. Recently, the so-called leading eight norms have been identified from many potential social norms that can sustain cooperation through a reputation-based indirect reciprocity mechanism. Despite indirect reciprocity being claimed to extend direct reciprocity in larger populations where direct experiences cannot be accumulated, the success of social norms have been analysed in models with global information and evolution. This study is the first to analyse the leading eight norms with local information and evolution. We find that the leading eight are robust against selfish players within most scenarios and can maintain a high level of cooperation also with local information and evolution. In fact, local evolution sustains cooperation under a wider set of conditions than global evolution, while local reputation does not hinder cooperation compared to global reputation. Four of the leading eight norms that do not reward justified defection offer better chances for cooperation with quick evolution, reputation with noise, larger networks, and when unconditional defectors enter the population.Shirsendu PodderSimone RighiKároly TakácsNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Shirsendu Podder Simone Righi Károly Takács Local reputation, local selection, and the leading eight norms
description	Abstract Humans are capable of solving cooperation problems following social norms. Social norms dictate appropriate behaviour and judgement on others in response to their previous actions and reputation. Recently, the so-called leading eight norms have been identified from many potential social norms that can sustain cooperation through a reputation-based indirect reciprocity mechanism. Despite indirect reciprocity being claimed to extend direct reciprocity in larger populations where direct experiences cannot be accumulated, the success of social norms have been analysed in models with global information and evolution. This study is the first to analyse the leading eight norms with local information and evolution. We find that the leading eight are robust against selfish players within most scenarios and can maintain a high level of cooperation also with local information and evolution. In fact, local evolution sustains cooperation under a wider set of conditions than global evolution, while local reputation does not hinder cooperation compared to global reputation. Four of the leading eight norms that do not reward justified defection offer better chances for cooperation with quick evolution, reputation with noise, larger networks, and when unconditional defectors enter the population.
format	article
author	Shirsendu Podder Simone Righi Károly Takács
author_facet	Shirsendu Podder Simone Righi Károly Takács
author_sort	Shirsendu Podder
title	Local reputation, local selection, and the leading eight norms
title_short	Local reputation, local selection, and the leading eight norms
title_full	Local reputation, local selection, and the leading eight norms
title_fullStr	Local reputation, local selection, and the leading eight norms
title_full_unstemmed	Local reputation, local selection, and the leading eight norms
title_sort	local reputation, local selection, and the leading eight norms
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/c82962adf28c4fd4b8f796d9ca8fa027
work_keys_str_mv	AT shirsendupodder localreputationlocalselectionandtheleadingeightnorms AT simonerighi localreputationlocalselectionandtheleadingeightnorms AT karolytakacs localreputationlocalselectionandtheleadingeightnorms
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Local reputation, local selection, and the leading eight norms

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