The scale of violent intergroup conflict in humans is astonishingly large compared to other mammals [1, 2, 3, 4]. This capacity for war is closely linked to our exceptionally cooperative abilities [5, 6]. The parochial altruism model formally describes how within-group cooperation and...

This paper reviews some of the economic experimental evidence on conformism. There is nothing to match the early psychology experiments where subjects were often swayed by the behaviour of others to an extraordinary degree, but there is plenty of evidence of conformism. This seems built-in to...

This paper reviews some of the economic experimental evidence on conformism. There is nothing to match the early psychology experiments where subjects were often swayed by the behaviour of others to an extraordinary degree, but there is plenty of evidence of conformism. This seems built-in to...