We use a novel approach to address the question of whether a union of sovereign countries can efficiently raise and allocate a budget, even when members are purely self-interested and participation is voluntary. The main innovation of our model is to explore the link between budget contributions...

We analyze both theoretically and empirically how monetary incentives and information about others’ behavior affect dishonesty. We run a laboratory experiment with 560 participants, each of whom observes a number from one to six with there being a payoff associated with each number. They can...