Assortment, but not knowledge of assortment, affects cooperation and individual success in human groups
Junikka, J., Molleman, L., van den Berg, P., Weissing, F. J., & Puurtinen, M. (2017). Assortment, but not knowledge of assortment, affects cooperation and individual success in human groups. PLoS ONE, 12(10), Article e0185859. https://doi.org/10.1371/journal.pone.0185859
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2017Discipline
Ekologia ja evoluutiobiologiaBiologisten vuorovaikutusten huippututkimusyksikköEcology and Evolutionary BiologyCentre of Excellence in Biological Interactions ResearchCopyright
© 2017 Junikka et al. This is an open access article distributed under the terms of the
Creative Commons Attribution License.
The success or failure of human collective action often depends on the cooperation tendencies
of individuals in groups, and on the information that individuals have about each other’s
cooperativeness. However, it is unclear whether these two factors have an interactive effect
on cooperation dynamics. Using a decision-making experiment, we confirm that groups
comprising individuals with higher cooperation tendencies cooperate at a higher level than
groups comprising individuals with low cooperation tendencies. Moreover, assorting individuals
with similar cooperation tendency together affected behaviour so that the most cooperative
individuals tended to cooperate more and the least cooperative individuals cooperated
less, compared to their behaviour in randomly formed groups. In line with predictions of evolutionary
models of cooperation, there was a strong positive association between individuals’
cooperation tendency and success when groups were formed assortatively, whereas
such association did not exist when groups were formed randomly. Surprisingly, information
about group members’ cooperativeness in assorted groups had no effect on cooperation
levels. We discuss potential explanations for why information about cooperativeness of others
may be disregarded in certain circumstances.
...
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Public Library of ScienceISSN Search the Publication Forum
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Except where otherwise noted, this item's license is described as © 2017 Junikka et al. This is an open access article distributed under the terms of the
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