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Consumption Risk-sharing in Social Networks

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Author Info
Attila Ambrus () (Harvard University)
Markus Mobius () (Harvard University)
Adam Szeidl () (University of California, Berkeley)

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Abstract

We build a model of informal risk-sharing among agents organized in a social network. A connection between individuals serves as collateral that can be used to enforce insurance payments. We characterize incentive compatible risk-sharing arrangements for any network structure, and develop two main results. (1) Expansive networks, where every group of agents have a large number of links with the rest of the community relative to the size of the group, facilitate better risk-sharing. In particular, “two-dimensional” village networks organized by geography are sufficiently expansive to allow very good risk-sharing. (2) In second-best arrangements, agents organize in endogenous “risksharing islands” in the network, where shocks are shared fully within but imperfectly across islands. As a result, risk-sharing in second-best arrangements is local: socially closer agents insure each other more. In an application of the model, we explore the spillover effect of development aid on the consumption of non-treated individuals.

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Paper provided by Institute for Advanced Study, School of Social Science in its series Economics Working Papers with number 0079.

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Length: 52 pages
Date of creation: Nov 2007
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Handle: RePEc:ads:wpaper:0079

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  1. De Weerdt, Joachim & Dercon, Stefan, 2006. "Risk-sharing networks and insurance against illness," Journal of Development Economics, Elsevier, vol. 81(2), pages 337-356, December. [Downloadable!] (restricted)
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  2. Kocherlakota, Narayana R, 1996. "Implications of Efficient Risk Sharing without Commitment," Review of Economic Studies, Blackwell Publishing, vol. 63(4), pages 595-609, October. [Downloadable!] (restricted)
  3. Coate, Stephen & Ravallion, Martin, 1993. "Reciprocity without commitment : Characterization and performance of informal insurance arrangements," Journal of Development Economics, Elsevier, vol. 40(1), pages 1-24, February. [Downloadable!] (restricted)
  4. Udry, Christopher, 1994. "Risk and Insurance in a Rural Credit Market: An Empirical Investigation in Northern Nigeria," Review of Economic Studies, Blackwell Publishing, vol. 61(3), pages 495-526, July. [Downloadable!] (restricted)
  5. Fafchamps, Marcel & Lund, Susan, 2003. "Risk-sharing networks in rural Philippines," Journal of Development Economics, Elsevier, vol. 71(2), pages 261-287, August. [Downloadable!] (restricted)
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  6. Kandori, Michihiro, 1992. "Social Norms and Community Enforcement," Review of Economic Studies, Blackwell Publishing, vol. 59(1), pages 63-80, January. [Downloadable!] (restricted)
  7. Maurizio Mazzocco, 2007. "Household Intertemporal Behaviour: A Collective Characterization and a Test of Commitment," Review of Economic Studies, Blackwell Publishing, vol. 74(3), pages 857-895, 07. [Downloadable!] (restricted)
  8. Ernst Fehr & Simon Gachter, 2000. "Cooperation and Punishment in Public Goods Experiments," American Economic Review, American Economic Association, vol. 90(4), pages 980-994, September. [Downloadable!] (restricted)
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  9. Aghion, Philippe & Antras, Pol & Helpman, Elhanan, 2007. "Negotiating free trade," Journal of International Economics, Elsevier, vol. 73(1), pages 1-30, September. [Downloadable!] (restricted)
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  10. Greif, Avner, 1993. "Contract Enforceability and Economic Institutions in Early Trade: the Maghribi Traders' Coalition," American Economic Review, American Economic Association, vol. 83(3), pages 525-48, June. [Downloadable!] (restricted)
  11. Fafchamps, Marcel & Gubert, Flore, 2007. "The formation of risk sharing networks," Journal of Development Economics, Elsevier, vol. 83(2), pages 326-350, July. [Downloadable!] (restricted)
  12. Kazianga, Harounan & Udry, Christopher, 2006. "Consumption smoothing? Livestock, insurance and drought in rural Burkina Faso," Journal of Development Economics, Elsevier, vol. 79(2), pages 413-446, April. [Downloadable!] (restricted)
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  13. Kranton, Rachel E, 1996. "Reciprocal Exchange: A Self-Sustaining System," American Economic Review, American Economic Association, vol. 86(4), pages 830-51, September. [Downloadable!] (restricted)
  14. Armando Gomes, 2005. "Multilateral Contracting with Externalities," Econometrica, Econometric Society, vol. 73(4), pages 1329-1350, 07. [Downloadable!] (restricted)
  15. Yann Bramoullé & Rachel Kranon, 2005. "Risk-Sharing Networks," Cahiers de recherche 0526, CIRPEE. [Downloadable!]
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  16. Markus Mobius & Adam Szeidl, 2007. "Trust and Social Collateral," NBER Working Papers 13126, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  17. Avinash Dixit, 2003. "Trade Expansion and Contract Enforcement," Journal of Political Economy, University of Chicago Press, vol. 111(6), pages 1293-1317, December. [Downloadable!] (restricted)
  18. Francis Bloch & Garance Genicot, 2005. "Informal Insurance in Social Networks," 2005 Meeting Papers 156, Society for Economic Dynamics. [Downloadable!]
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  19. Ligon, Ethan & Thomas, Jonathan P & Worrall, Tim, 2002. "Informal Insurance Arrangements with Limited Commitment: Theory and Evidence from Village Economies," Review of Economic Studies, Blackwell Publishing, vol. 69(1), pages 209-44, January.
  20. Ligon, Ethan, 1998. "Risk Sharing and Information in Village Economics," Review of Economic Studies, Blackwell Publishing, vol. 65(4), pages 847-64, October. [Downloadable!] (restricted)
  21. Ellison, Glenn, 1994. "Cooperation in the Prisoner's Dilemma with Anonymous Random Matching," Review of Economic Studies, Blackwell Publishing, vol. 61(3), pages 567-88, July. [Downloadable!] (restricted)
  22. Townsend, Robert M, 1994. "Risk and Insurance in Village India," Econometrica, Econometric Society, vol. 62(3), pages 539-91, May. [Downloadable!] (restricted)
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  23. Ogaki, Masao & Zhang, Qiang, 2001. "Decreasing Relative Risk Aversion and Tests of Risk Sharing," Econometrica, Econometric Society, vol. 69(2), pages 515-26, March.
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  24. Marcel Fafchamps & Flore Gubert, 2005. "The Formation of Risk Sharing Networks," Working Papers DT/2005/13, DIAL (Développement, Institutions & Analyses de Long terme). [Downloadable!]
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