We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleA simple rule for the evolution of cooperation on graphs and social networks.AuthorsOhtsuki, Hisashi; Hauert, Christoph; Lieberman, Erez; Nowak, Martin A.PublicationNature, 2006, Vol 441, Issue 7092, p502ISSN0028-0836Publication typearticleDOI10.1038/nature04605