Social Heuristics Shape Intuitive Cooperation Newer:Coordinated Punishment Does Not Proliferate When Defectors Can Also Punish CooperatorsOlder:The Emergence of “Us and Them” in 80 Lines of Code: Modeling Group Genesis in Homogeneous Populations PostedApril 17, 2014 AuthorScienceSites Categoriesjournal-article, social-behaviors-beliefs, 2014 Tags2014, Cooperation, Intuition, Mechanical turk