We investigate experimentally whether collective choice matters for individual attitudes to ambiguity. We consider a two-urn Ellsberg experiment: one urn offers a 45% chance of winning a fixed monetary prize, the other an ambiguous chance. Participants choose either individually or in groups of...

We provide an experimental test of theories to explain differences in redistribution preferences across countries. We involved participants in standardized situations of redistribution in four Western countries, varying the relevance of self-interest and uncertainty over initial earnings. Demand...