Using a specially designed experiment, we investigate whether and how interdependence in risk exposure i.e., risk taking by some members of a potential risk sharing group affecting not only their own but also their co-members risk exposure, affects both risk taking and ex post sharing. The...

We use a simple cost-benefit analysis to derive optimal similarity judgments - addressing the question: when should we expect a decision maker to distinguish between different time periods or different prizes? Our key premise is that cognitive resources are costly and are to be deployed only...