Two central puzzles about social norms are how they are enforced and how they are created or modified. The sanctions for violation of a norm can be categorized as automatic, guilt, shame, informational, bilateral- costly, and multilateral-costly. Problems in creating and enforcing norms are...

In the emerging literature on judgment (as opposed to preference) aggregation, expert rights or liberal rights have not been investigated yet. When a group forms collective beliefs, it may assign experts with special knowledge on certain propositions the right to determine the collective...