December 20, 2013

Forgiveness as success strategy

Researchers at IST Austria study the consequences of forgiving in Prisoner’s Dilemma

The Prisoner’s Dilemma is the standard model for studying the evolution of cooperation. In the recent edition of the online publication PLoS ONE, a team of researchers – including the IST Austria scientists Prof. Krishnendu Chatterjee and PhD student Johannes Reiter (pictured above) – examines a scenario in which two players have to alternately decide over numerous moves whether to cooperate with or defect each other. Using a mathematical model and computer simulation the team can show that the strategy named “Forgiver” proves to be the most successful. A forgiver defects once when the opponent has defected but subsequently tries to re-establish cooperation which leads to a long term success in the alternating Prisoner’s Dilemma.

Find a summary of the publication here:
http://dx.doi.org/10.1371/journal.pone.0080814

Download of hi res image: (from left) PhD Student Johannes Reiter and Prof. Krish Chatterjee / © IST Austria / free use in context of IST Austria