In nonlinear pricing environment with correlated types, we characterize optimal selling mechanisms when buyers could form a coalition to coordinate their reports and to arbitrage on the goods. We find that when the types of agents are weakly positively correlated, the optimal weakly...

This paper provides a new explanation for the dominance of the low-powered incentive contract over the high-powered incentive contract using a hybrid model of moral hazard and adverse selection. We first show that unobservable risk aversion or cost leads to low-powered incentives. We then...

This paper considers the screening problem faced by a monopolist of a network good in a general setting. We demonstrate that the joint presence of asymmetric information and network externalities revise the "no distortion on the top" and "one-way distortion" principle. The pattern of consumption...

This paper provides a new explanation for the dominance of the low-powered incentive contract over the high-powered incentive contract using a mixed model of moral hazard and adverse selection. We first show that the power of incentives in the second-best contract is lower than that in the...