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Strategic Interaction and Networks

  • Yann Bramoull?
  • Rachel Kranton
  • Martin D'Amours

Geography and social links shape economic interactions. In industries, schools, and markets, the entire network determines outcomes. This paper analyzes a large class of games and obtains a striking result. Equilibria depend on a single network measure: the lowest eigenvalue. This paper is the first to uncover the importance of the lowest eigenvalue to economic and social outcomes. It captures how much the network amplifies agents' actions. The paper combines new tools?potential games, optimization, and spectral graph theory?to solve for all Nash and stable equilibria and applies the results to R&D, crime, and the econometrics of peer effects.

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File URL: http://www.aeaweb.org/articles.php?doi=10.1257/aer.104.3.898
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Article provided by American Economic Association in its journal American Economic Review.

Volume (Year): 104 (2014)
Issue (Month): 3 (March)
Pages: 898-930

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Handle: RePEc:aea:aecrev:v:104:y:2014:i:3:p:898-930
Note: DOI: 10.1257/aer.104.3.898
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  1. James E. Rauch & Alessandra Casella, 2003. "Overcoming Informational Barriers to International Resource Allocation: Prices and Ties," Economic Journal, Royal Economic Society, vol. 113(484), pages 21-42, January.
  2. Daiji Kawaguchi, 2004. "Peer effects on substance use among American teenagers," Journal of Population Economics, Springer, vol. 17(2), pages 351-367, 06.
  3. Adam B. Jaffe & Manuel Trajtenberg & Rebecca Henderson, 1992. "Geographic Localization of Knowledge Spillovers as Evidenced by Patent Citations," NBER Working Papers 3993, National Bureau of Economic Research, Inc.
  4. Nick Bloom & Mark Schankerman & John Van Reenen, 2005. "Identifying technology spillovers and product market rivalry," LSE Research Online Documents on Economics 5077, London School of Economics and Political Science, LSE Library.
  5. Timothy G. Conley & Christopher R. Udry, 2010. "Learning about a New Technology: Pineapple in Ghana," American Economic Review, American Economic Association, vol. 100(1), pages 35-69, March.
  6. Alejandro Gaviria & Steven Raphael, 2001. "School-Based Peer Effects And Juvenile Behavior," The Review of Economics and Statistics, MIT Press, vol. 83(2), pages 257-268, May.
  7. Belhaj, Mohamed & Bramoullé, Yann & Deroïan, Frédéric, 2014. "Network games under strategic complementarities," Games and Economic Behavior, Elsevier, vol. 88(C), pages 310-319.
  8. Yann Bramoull? & Rachel Kranton & Martin D'Amours, 2014. "Strategic Interaction and Networks," American Economic Review, American Economic Association, vol. 104(3), pages 898-930, March.
  9. James D. Adams, 2001. "Comparative Localization of Academic and Industrial Spillovers," NBER Working Papers 8292, National Bureau of Economic Research, Inc.
  10. David Card & Laura Giuliano, 2011. "Peer Effects and Multiple Equilibria in the Risky Behavior of Friends," NBER Working Papers 17088, National Bureau of Economic Research, Inc.
  11. repec:ner:tilbur:urn:nbn:nl:ui:12-284131 is not listed on IDEAS
  12. Manski, C.F., 1991. "Identification of Endogenous Social Effects: the Reflection Problem," Working papers 9127, Wisconsin Madison - Social Systems.
  13. Gary S. Becker, 1974. "Crime and Punishment: An Economic Approach," NBER Chapters, in: Essays in the Economics of Crime and Punishment, pages 1-54 National Bureau of Economic Research, Inc.
  14. Bloch, Francis & Zenginobuz, Unal, 2004. "The Effect of Spillovers on the Provision of Local Public Goods," MPRA Paper 186, University Library of Munich, Germany, revised 05 Oct 2006.
  15. Esther Duflo & Emmanuel Saez, 2000. "Participation and Investment Decisions in a Retirement Plan: The Influence of Colleagues' Choices," NBER Working Papers 7735, National Bureau of Economic Research, Inc.
  16. Kooreman, P. & Soetevent, A., 2007. "A discrete choice model with social interactions; with an application to high school teen behavior," Other publications TiSEM 39fff234-271a-4058-9912-7, Tilburg University, School of Economics and Management.
  17. Patrick Bayer & Randi Hjalmarsson & David Pozen, 2007. "Building Criminal Capital behind Bars: Peer Effects in Juvenile Corrections," NBER Working Papers 12932, National Bureau of Economic Research, Inc.
  18. Trogdon, Justin G. & Nonnemaker, James & Pais, Joanne, 2008. "Peer effects in adolescent overweight," Journal of Health Economics, Elsevier, vol. 27(5), pages 1388-1399, September.
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