期刊
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
卷 376, 期 1838, 页码 -出版社
ROYAL SOC
DOI: 10.1098/rstb.2020.0290
关键词
cooperation; partner choice; reputations; indirect reciprocity
类别
资金
- Royal Society University Research Fellowship
- Leverhulme Trust
- MINECO project [HAR2017-82483-C3-1-P]
- Social Science & Humanities Research Council of Canada (SSHRC) [430287]
- Swiss Science Foundation [310030_192673]
- European Research Council (ERC) [785635]
- Swiss National Science Foundation (SNF) [310030_192673] Funding Source: Swiss National Science Foundation (SNF)
When one individual helps another, it not only benefits the recipient, but also may gain a reputation for being cooperative, leading to favoritism in future interactions. Indirect reciprocity and signaling theory are major mechanisms through which developing a cooperative reputation can provide a competitive advantage. The benefits of being seen as cooperative have been a significant driving force for sociality, particularly in humans.
When one individual helps another, it benefits the recipient and may also gain a reputation for being cooperative. This may induce others to favour the helper in subsequent interactions, so investing in being seen to help others may be adaptive. The best-known mechanism for this is indirect reciprocity (IR), in which the profit comes from an observer who pays a cost to benefit the original helper. IR has attracted considerable theoretical and empirical interest, but it is not the only way in which cooperative reputations can bring benefits. Signalling theory proposes that paying a cost to benefit others is a strategic investment which benefits the signaller through changing receiver behaviour, in particular by being more likely to choose the signaller as a partner. This reputation-based partner choice can result in competitive helping whereby those who help are favoured as partners. These theories have been confused in the literature. We therefore set out the assumptions, the mechanisms and the predictions of each theory for how developing a cooperative reputation can be adaptive. The benefits of being seen to be cooperative may have been a major driver of sociality, especially in humans. This article is part of the theme issue 'The language of cooperation: reputation and honest signalling'.
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