A monopolist sells a good whose value depends on the number of buyers who adopt it as well as on their private types. The seller coordinates the buyersʼ adoption decisions based on their reported types, and charges them the price based on the number of adoptions. We study ex post implementable...

We analyze the problem of optimal monopoly pricing in social networks where agents care about consumption or prices of their neighbors. We characterize the relation between optimal prices and consumersʼ centrality in the social network. This relation depends on the market structure (monopoly...

Global games have unique equilibria in which aggregate behavior changes sharply when an underlying random fundamental crosses some threshold. This property relies on the existence of dominance regions: all players have a highest and lowest action that, for some fundamentals, is strictly...