Cooperation with others, including strangers, has helped humanity prosper throughout history. However, much of the psychology of cooperation is still unexplained, especially in the realm of indirect reciprocity, or cooperation without repeated encounters.  Dr Isamu Okada, Associate Professor at Soka University, is exploring the responses of people participating in reputation-based cooperation games to distinguish between the good who deserve to be cooperated with, and the bad.Read more about Dr Okada's work in two papers from Scientific Reports, here and here.