Biographical note: GoyalSanjeev: Sanjeev Goyal is professor of economics at the University of Cambridge and a fellow of Christ’s College. He is one of the pioneers in the economic study of networks, and his work has appeared in leading international journals such as "Econometrica, Journal of...

We analyze a dynamic version of the Akerlof-Wilson "lemons" market in a competitive durable good setting. There is a fixed set of sellers with private information about the quality of their wares. The price mechanism sorts sellers of different qualities into different time periods--prices and...

We examine an oligopoly model where some consumers engage in costly non-sequential search to discover prices. There are three distinct price-dispersed equilibria characterized by low, moderate and high search intensity. The effects of an increase in the number of firms on search behaviour,...