Charness et al. (2007b) have shown that group membership has a strong effect on individual decisions in strategic games when group membership is salient through payoff commonality. In this comment I show that their findings also apply to non-strategic decisions, even when no outgroup exists, and...

The coronavirus pandemic imposes major challenges for both the population and political actors. Measures to contain the pandemic must be communicated in such a way that they motivate to persevere. However there is now great resistance in parts of the population. From the perspective of social-...