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Wiley InterScience | ||||||||||||
  Psychological ScienceVolume 18 Issue 1, Pages 19 - 23 Published Online: 14 Mar 2007 © 2009 Association for Psychological Science
Abstract | References | Full Text: HTML, PDF (Size: 97K) | Related Articles | Citation Tracking  Research Report Gender Differences in Cooperation and Competition: The Male-Warrior Hypothesis Copyright Copyright © 2007 Association for Psychological Science ABSTRACTABSTRACT—Evolutionary scientists argue that human cooperation is the product of a long history of competition among rival groups. There are various reasons to believe that this logic applies particularly to men. In three experiments, using a step-level public-goods task, we found that men contributed more to their group if their group was competing with other groups than if there was no intergroup competition. Female cooperation was relatively unaffected by intergroup competition. These findings suggest that men respond more strongly than women to intergroup threats. We speculate about the evolutionary origins of this gender difference and note some implications. (Received 2/13/06; Revision accepted 6/30/06; Final materials received 6/30/06) | 
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