On the Origin of Cooperation, by Elizabeth Pennisi *Science* 4 September 2009: 1196-1199. How did cooperation evolve when cheaters—those who benefit without making sacrifices—can threaten its stability? In the ninth essay in *Science*'s series in honor of the Year of Darwin, Elizabeth Pennisi discusses the genetic nuts and bolts of cooperation in systems from microbes to humans. http://www.sciencemag.org/cgi/content/short/325/5945/1196
Positive Interactions Promote Public Cooperation, by David G. Rand, Anna Dreber, Tore Ellingsen, Drew Fudenberg, and Martin A. Nowak *Science* 4 September 2009: 1272-1275. Reward is as good as punishment to promote cooperation, costs less, and increases the share out of resources up for grabs. http://www.sciencemag.org/cgi/content/abstract/sci;325/5945/1272 For those who read German, I found this on Silke Helfrich's CommonsBlog<http://commonsblog.wordpress.com/2009/09/06/belohnt-kooperation-die-lohnt-statt-trittbrettfahrer-zu-bestrafen/> . Stephan --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "CooperationCommons" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/cooperationcommons?hl=en -~----------~----~----~----~------~----~------~--~---
