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Critical Social Learning: A Solution to Rogers's Paradox of Nonadaptive Culture
Stockholm University.
Mälardalen University, Department of Mathematics and Physics.ORCID iD: 0000-0002-7164-0924
Stockholm University.
2007 (English)In: American Anthropologist, ISSN 0002-7294, E-ISSN 1548-1433, Vol. 109, no 4, p. 727-734Article in journal (Refereed) Published
Abstract [en]

Alan Rogers (1988) presented a game theory model of the evolution of social learning, yielding the paradoxical conclusion that social learning does not increase the fitness of a population. We expand on this model, allowing for imperfections in individual and social learning as well as incorporating a "critical social learning" strategy that tries to solve an adaptive problem first by social learning, and then by individual learning if socially acquired behavior proves unsatisfactory. This strategy always proves superior to pure social learning and typically has higher fitness than pure individual learning, providing a solution to Rogers's paradox of nonadaptive culture. Critical social learning is an evolutionarily stable strategy (ESS) unless cultural transmission is highly unfaithful, the environment is highly variable, or social learning is much more costly than individual learning. We compare the model to empirical data on social learning and on spatial variation in primate cultures and list three requirements for adaptive culture. © 2007 by the American Anthropological Association.

Place, publisher, year, edition, pages
2007. Vol. 109, no 4, p. 727-734
National Category
Ethnology Mathematics Psychology
Identifiers
URN: urn:nbn:se:mdh:diva-2861DOI: 10.1525/aa.2007.109.4.727ISI: 000251471100012Scopus ID: 2-s2.0-36148997658OAI: oai:DiVA.org:mdh-2861DiVA, id: diva2:115524
Available from: 2008-01-04 Created: 2008-01-04 Last updated: 2017-12-14Bibliographically approved

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Eriksson, Kimmo

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