Contact between people from different groups triggers specific individual- and group-level responses, ranging from attitudes and emotions to welfare and health outcomes. Standard social psychological perspectives do not yet provide an integrated, causal model of these phenomena. As an...

Most standard social science accounts only offer limited explanations of institutional design, i.e. why institutions have common features observed in many different human groups. Here we suggest that these features are best explained as the outcome of evolved human cognition, in such domains as...