We consider a dynamic model in which a principal decides what information to release about a product of unknown quality (e.g., a vaccine) to incentivize agents to experiment with the product. Assuming that the agents are long-lived and forward-looking, their incentive to wait and see other...

This paper shows how larger group size can enhance punishing behavior in social dilemmas and hence support higher levels of cooperation.We focus on describing conflict technology using Lanchester's equations and study the role of "collectivity" of punishment to support cooperation in large...