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Risk-sharing agreements on social networks

Author

Listed:
  • Adam Szeidl

    (UC Berkeley)

  • Attila Ambrus

    (Harvard University)

Abstract

This paper investigates self-enforcing risk-sharing agreements in a society, if only binary transfers are allowed, among agents connected by social links. A social link between two agents represents another activity they are involved in together. It also serves as a collateral, to enforce transfer payments specified by the risk-sharing agreement. Given an arbitrary network structure and link values, we characterize the set of incentive compatible agreements, and its efficient frontier. All efficient agreements imply that for any endowment vector realization there are connected blocks of players who completely coinsure each other, and links that connect the block to outsiders operate at full capacity. However, these blocks are different for different endowment realizations, as opposed to models which specify constant risk-sharing groups. We show that under general conditions (i) full risk-sharing is not possible in large networks; (ii) the covariance of the consumption of two distant agents is small; (iii) changing only the correlation of individual endowments does not change the set of efficient risk-sharing agreements, only ex ante welfare. We relate our results to empirical findings on social insurance within and across villages in developing countries.

Suggested Citation

  • Adam Szeidl & Attila Ambrus, 2007. "Risk-sharing agreements on social networks," 2007 Meeting Papers 985, Society for Economic Dynamics.
  • Handle: RePEc:red:sed007:985
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    1. Dimitri Vayanos & Pierre-Olivier Weill, 2008. "A Search-Based Theory of the On-the-Run Phenomenon," Journal of Finance, American Finance Association, vol. 63(3), pages 1361-1398, June.
    2. Michaely, Roni & Vila, Jean-Luc, 1996. "Trading Volume with Private Valuation: Evidence from the Ex-dividend Day," Review of Financial Studies, Society for Financial Studies, pages 471-509.
    3. Grossman, Sanford J & Miller, Merton H, 1988. " Liquidity and Market Structure," Journal of Finance, American Finance Association, vol. 43(3), pages 617-637, July.
    4. Andrew W. Lo & Harry Mamaysky & Jiang Wang, 2004. "Asset Prices and Trading Volume under Fixed Transactions Costs," Journal of Political Economy, University of Chicago Press, vol. 112(5), pages 1054-1090, October.
    5. Ricardo Lagos & Guillaume Rocheteau, 2006. "Search in asset markets," Staff Report 375, Federal Reserve Bank of Minneapolis.
    6. Halkin, Hubert, 1974. "Necessary Conditions for Optimal Control Problems with Infinite Horizons," Econometrica, Econometric Society, vol. 42(2), pages 267-272, March.
    7. Ricardo Lagos & Guillaume Rocheteau, 2006. "Search in asset markets," Staff Report 375, Federal Reserve Bank of Minneapolis.
    8. Richard Lindsey & Anthony Pecora, 1998. "Ten Years After: Regulatory Developments in the Securities Markets Since the 1987 Market Break," Journal of Financial Services Research, Springer;Western Finance Association, pages 283-314.
    9. Benveniste, L. M. & Scheinkman, J. A., 1982. "Duality theory for dynamic optimization models of economics: The continuous time case," Journal of Economic Theory, Elsevier, vol. 27(1), pages 1-19, June.
    10. Stoll, Hans R, 1978. "The Supply of Dealer Services in Securities Markets," Journal of Finance, American Finance Association, vol. 33(4), pages 1133-1151, September.
    11. Antonio E. Bernardo & Ivo Welch, 2004. "Liquidity and Financial Market Runs," The Quarterly Journal of Economics, Oxford University Press, pages 135-158.
    12. Ho, Thomas S Y & Stoll, Hans R, 1983. " The Dynamics of Dealer Markets under Competition," Journal of Finance, American Finance Association, vol. 38(4), pages 1053-1074, September.
    13. Ricardo Lagos & Guillaume Rocheteau, 2007. "Search in Asset Markets: Market Structure, Liquidity, and Welfare," American Economic Review, American Economic Association, pages 198-202.
    14. Hamilton, James D, 1996. "The Daily Market for Federal Funds," Journal of Political Economy, University of Chicago Press, vol. 104(1), pages 26-56, February.
    15. Ricardo Lagos & Guillaume Rocheteau, 2007. "Search in Asset Markets: Market Structure, Liquidity, and Welfare," American Economic Review, American Economic Association, pages 198-202.
    16. Claudio E. V. Borio, 2004. "Market distress and vanishing liquidity: anatomy and policy options," BIS Working Papers 158, Bank for International Settlements.
    17. George M. Constantinides, 2005. "Capital Market Equilibrium with Transaction Costs," World Scientific Book Chapters,in: Theory Of Valuation, chapter 7, pages 207-227 World Scientific Publishing Co. Pte. Ltd..
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