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A generalization of Hamilton's rule-Love others how much?
KTH, School of Engineering Sciences (SCI), Mathematics (Dept.).
2012 (English)In: Journal of Theoretical Biology, ISSN 0022-5193, E-ISSN 1095-8541, Vol. 299, 42-54 p.Article in journal (Refereed) Published
Abstract [en]

According to Hamilton's (1964a, b) rule, a costly action will be undertaken if its fitness cost to the actor falls short of the discounted benefit to the recipient, where the discount factor is Wright's index of relatedness between the two. We propose a generalization of this rule, and show that if evolution operates at the level of behavior rules, rather than directly at the level of actions, evolution will select behavior rules that induce a degree of cooperation that may differ from that predicted by Hamilton's rule as applied to actions. In social dilemmas there will be less (more) cooperation than under Hamilton's rule if the actions are strategic substitutes (complements). Our approach is based on natural selection, defined in terms of personal (direct) fitness, and applies to a wide range of pairwise interactions.

Place, publisher, year, edition, pages
2012. Vol. 299, 42-54 p.
Keyword [en]
Evolutionary stability, Altruism, Spite, Cooperation, Hamilton's rule
National Category
Bioinformatics (Computational Biology)
URN: urn:nbn:se:kth:diva-93374DOI: 10.1016/j.jtbi.2011.05.008ISI: 000301755700006ScopusID: 2-s2.0-84857915836OAI: diva2:515835
Knut and Alice Wallenberg Foundation
QC 20120416Available from: 2012-04-16 Created: 2012-04-16 Last updated: 2012-04-16Bibliographically approved

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Weibull, Jörgen W.
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