We address the problem of a planner looking for the efficient network when agents play a network game with local complementarities and links are costly. We show that for general network cost functions, efficient networks belong to the class of Nested-Split Graphs. Next, we refine our results and...

This paper considers a population of agents that are engaged in a listening network. The agents wish to match their actions to the true value of some uncertain (exogenous) parameter and to the actions of the other agents. Each agent begins with some initial information about the parameter and,...

We study information acquisition in a framework characterized by strategic complementarity or substitutability. Agents’ actions are based on costly public and private signals, the precisions of which are set by a policy maker and by private agents, respectively. The policy maker – acting as...