The Oxford Handbook of the Economics of Networks represents the frontier of research into how and why networks they form, how they influence behavior, how they help govern outcomes in an interactive world, and how they shape collective decision making, opinion formation, and diffusion dynamics. From a methodological perspective, the contributors to this volume devote attention to theory, field experiments, laboratory experiments, and econometrics. Theoretical work in network formation, games played on networks, repeated games, and the interaction between linking and behavior is synthesized.A number of chapters are devoted to studying social process mediated by networks. Topics here include opinion formation, diffusion of information and disease, and learning. There are also chapters devoted to financial contagion and systemic risk, motivated in part by the recent financial crises. Another section discusses communities, with applications including social trust, favor exchange, and social collateral; the importance of communities for migration patterns; and the role that networks and communities play in the labor market.A prominent role of networks, from an economic perspective, is that they mediate trade. Several chapters cover bilateral trade in networks, strategic intermediation, and the role of networks in international trade. Contributions discuss as well the role of networks for organizations. On the one hand, one chapter discusses the role of networks for the performance of organizations, while two other chapters discuss managing networks of consumers and pricing in the presence of network-based spillovers.Finally, the authors discuss the internet as a network with attention to the issue of net neutrality.

I. INTRODUCTION1. Introduction: Yann Bramoull?, Andrea Galeotti and Brian RogersII. PERSPECTIVES2. Networks: A Paradigm Shift for Economics?: Alan Kirman3. Networks in Economics: A Perspective on the Literature: Sanjeev Goyal4. The Past and Future of Network Analysis in Economics: Matthew JacksonIII. NETWORK GAMES AND NETWORK FORMATION5. Games Played on Networks: Yann Bramoull? and Rachel Kranton6. Repeated Games and Networks: Francesco Nava7. Stochastic Network Formation and Homophily: Paolo Pin and Brian Rogers8. Network Formation Games: Ana Mauleon and Vincent Vannetelbosch9. Links and Actions in Interplay: Fernando Vega-Redondo10. Conflict and Networks: Marcin Dziubinski, Sanjeev Goyal, and Adrien Vigier11. Key Players: Yves ZenouIV. EMPIRICS AND EXPERIMENTS12. Some Challenges in the Empirics of the Effects of Networks: Vincent Boucher and Bernard Fortin13. Econometrics of Network Formation: Arun Chandrasekhar14. Small World Networks: Duncan Watts15. Networked Experiments: A Review of Methods and Innovations: Sinan Aral16. Field Experiments, Social Networks, and Development: Emily Breza17. Networks in the Laboratory: Syngjoo Choi, Edoardo Gallo, and Shachar KarivV. DIFFUSION, LEARNING AND CONTAGION18. Diffusion in Networks: PJ Lamberson19. Learning in Social Networks: Ben Golub and Evan Sadler20. Financial Contagion in Networks: Antonio Cabrales, Douglas Gale, and Piero Gottardi21. Networks, Shocks, and Systemic Risk: Daron Acemoglu, Asu Ozdaglar, and Alireza Tahbaz-SalehiVI. COMMUNITIES22. Informal Transfers in Social Networks: Markus Mobius and Tanya Rosenblat23. Community Networks and Migration: Kaivan Munshi24. Social Networks and the Labor Market: Lori BeamanVII. ORGANIZATIONS AND MARKETS25. Attention in Organizations: Wouter Dessein and Andrea Prat26. Models of Bilateral Trade in Networks: Mihai Manea27. Strategic Models of Intermediation Networks: Daniele Condorelli and Andrea Galeotti28. Networks in International Trade: Thomas Chaney29. Targeting and Pricing in Social Networks: Francis Bloch30. Managing Social Interactions: Dina Mayzlin31. Economics Features of the Internet and Network Neutrality: Nicholas Economides