The study of Tatsuya Sasaki suggests that the practice of avoiding moral assessments can be the best policy when assessing those who refuse to help wrongdoers (Copyright: Universität Wien/Barbara Mair).
Optional moral assessment can promote cooperation more effectively than compulsory moral assessment. A research team led by Mathematician Tatsuya Sasaki from the University of Vienna presents a new optimal theory of the evolution of reputation-based cooperation. This team proves that the practice of making moral assessments conditionally is very effective in establishing cooperation in terms of evolutionary game theory. "Our study also demonstrates the evolutionary disadvantage of seeking reputation by sanctioning wrongdoers," says Sasaki. The results of the study were published on the 2nd of February 2017 in Scientific Reports. Moral systems are key to distinguishing between "good" and "bad" and are essential to the establishment of social orders. For instance, a rule of thumb for maintaining cooperation within a sizable group is to help those who have a good reputation and avoid those who seem bad.
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