We study an economy where intermediaries facilitate exchange between a supplier and consumers. The set of feasible transactions is characterized by a network and an efficient auction protocol sets prices. We examine trading networks compatible with a free-entry equilibrium. There is under-entry...

We study a coordination game among agents on a network, who choose whether or not to take an action in an uncertain environment that yields value increasing in the actions of neighbors. We develop an algorithm that fully characterizes the equilibrium partitions (coordination sets) and thresholds...

This paper studies information acquisition and use in network games. The network structure incorporates both strategic complements (positive links) and substitutes (negative links). An information-use game played on a correlation-adjusted network is derived. Equilibrium inefficiencies in both...