Introduction -- Networks : concepts and empirics -- Games on networks -- Coordination and cooperation -- Social learning -- Social networks in labor markets -- Strategic network formation : concepts -- One-sided link formation -- Two-sided link formation -- Research collaboration among firms

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...

Networks pervade social and economic life, and they play a prominent role in explaining a huge variety of social and economic phenomena. Standard economic theory did not give much credit to the role of networks until the early 1990s, but since then the study of the theory of networks has...

This paper examines the small world hypothesis. The first part of the paper presents empirical evidence on the evolution of a particular world: the world of journal publishing economists during the period 1970-2000. We find that in the 1970's the world of economics was a collection of islands,...

This paper examines the small world hypothesis. The first part of the paper presents empirical evidence on the evolution of a particular world: the world of journal publishing economists during the period 1970-2000. We find that in the 1970's the world of economics was a collection of islands....

The structures of social interaction affect individual behavior and economic performance in important ways. This leads us to ask: does the architecture of social interaction exhibit particular patterns and are these patterns stable over time? We examine interaction among economists by looking at...