Evolution does not favour selfish people, according to new research.
This challenges a previous theory which suggested it was preferable to put yourself first.
Instead, it pays to be co-operative, shown in a model of "the
prisoner's dilemma", a scenario of game theory - the study of strategic
decision-making.
Published in Nature Communications, the team says their work shows that exhibiting only selfish traits would have made us become extinct.
Game theory involves devising "games" to simulate situations
of conflict or co-operation. It allows researchers to unravel complex
decision-making strategies and to establish why certain types of
behaviour among individuals emerge.
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