Evolution & Human Behavior
Volume 31, Issue 2 , Pages 109-117, March 2010

Altruism toward in-group members as a reputation mechanism☆

Hokkaido University, Sapporo, Hokkaido, Japan

Received 18 March 2009; accepted 4 September 2009. published online 02 December 2009.

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☆ The studies reported in this article were supported by Grant-in-aid 19330139 and 08J05455 by the Japan Society for the Promotion of Science.

PII: S1090-5138(09)00091-9

doi:10.1016/j.evolhumbehav.2009.09.004

Evolution & Human Behavior
Volume 31, Issue 2 , Pages 109-117, March 2010

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