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Heterogeneity and the formation of risk - sharing coalitions

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  • Fernando Jaramillo

    ()

  • Hubert Kempf

    ()

  • Fabien Moizeau

    ()

Abstract

Abstract: We offer a new explanation of partial risk sharing based on coalition formation and segmentation of society in a risky environment, without assuming limited commitment and imperfect information. Heterogenous individuals in a society freely choose with whom they will share risk A partition belonging to the core of the membership game obtains. Perfect risk sharing does not necessarily arise. Focusing on mutual insurance rule and assuming that individuals only differ with respect to risk, we show that the core partition is homophily-based. The distribution of risk affects the number and size of these coalitions. Individuals may pay a lower risk premium in riskier societies. A higher heterogeneity in risk leads to a lower degree of risk sharing. We discuss how the endogenous partition of society into risk-sharing coalitions may shed light on empirical evidence on partial risk sharing. The case of heterogenous risk aversion leads to similar results.

Suggested Citation

  • Fernando Jaramillo & Hubert Kempf & Fabien Moizeau, 2013. "Heterogeneity and the formation of risk - sharing coalitions," DOCUMENTOS DE TRABAJO 011013, UNIVERSIDAD DEL ROSARIO.
  • Handle: RePEc:col:000092:011013
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    as
    1. Attanasio, Orazio & Davis, Steven J, 1996. "Relative Wage Movements and the Distribution of Consumption," Journal of Political Economy, University of Chicago Press, vol. 104(6), pages 1227-1262, December.
    2. 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.
    3. Pierre Dubois & Bruno Jullien & Thierry Magnac, 2008. "Formal and Informal Risk Sharing in LDCs: Theory and Empirical Evidence," Econometrica, Econometric Society, vol. 76(4), pages 679-725, July.
    4. Maurizio Mazzocco & Shiv Saini, 2012. "Testing Efficient Risk Sharing with Heterogeneous Risk Preferences," American Economic Review, American Economic Association, vol. 102(1), pages 428-468, February.
    5. Bloch, Francis & Genicot, Garance & Ray, Debraj, 2008. "Informal insurance in social networks," Journal of Economic Theory, Elsevier, vol. 143(1), pages 36-58, November.
    6. Dercon, Stefan & Christiaensen, Luc, 2011. "Consumption risk, technology adoption and poverty traps: Evidence from Ethiopia," Journal of Development Economics, Elsevier, vol. 96(2), pages 159-173, November.
    7. Townsend, Robert M, 1994. "Risk and Insurance in Village India," Econometrica, Econometric Society, vol. 62(3), pages 539-591, May.
    8. Dubois, Pierre, 2005. "Heterogeneity of Preferences, Limited Commitment and Coalitions Empirical Evidence on the Limits to Risk Sharing in Rural Pakistan," IDEI Working Papers 391, Institut d'Économie Industrielle (IDEI), Toulouse.
    9. Arcand, Jean-Louis & Fafchamps, Marcel, 2012. "Matching in community-based organizations," Journal of Development Economics, Elsevier, vol. 98(2), pages 203-219.
    10. Pierre‐André Chiappori & Krislert Samphantharak & Sam Schulhofer‐Wohl & Robert M. Townsend, 2014. "Heterogeneity and risk sharing in village economies," Quantitative Economics, Econometric Society, vol. 5, pages 1-27, March.
    11. Robert M. Townsend, 1995. "Consumption Insurance: An Evaluation of Risk-Bearing Systems in Low-Income Economies," Journal of Economic Perspectives, American Economic Association, vol. 9(3), pages 83-102, Summer.
    12. Sommarat Chantarat & Christopher Barrett, 2012. "Social network capital, economic mobility and poverty traps," The Journal of Economic Inequality, Springer;Society for the Study of Economic Inequality, vol. 10(3), pages 299-342, September.
    13. Ogaki, Masao & Zhang, Qiang, 2001. "Decreasing Relative Risk Aversion and Tests of Risk Sharing," Econometrica, Econometric Society, vol. 69(2), pages 515-526, March.
    14. Bramoullé, Yann & Kranton, Rachel, 2007. "Risk-sharing networks," Journal of Economic Behavior & Organization, Elsevier, vol. 64(3-4), pages 275-294.
    15. Ghatak, Maitreesh, 1999. "Group lending, local information and peer selection," Journal of Development Economics, Elsevier, vol. 60(1), pages 27-50, October.
    16. Tessa Bold, 2009. "Implications of Endogenous Group Formation for Efficient Risk-Sharing," Economic Journal, Royal Economic Society, vol. 119(536), pages 562-591, March.
    17. Patrick Legros & Andrew F. Newman, 2007. "Beauty Is a Beast, Frog Is a Prince: Assortative Matching with Nontransferabilities," Econometrica, Econometric Society, vol. 75(4), pages 1073-1102, July.
    18. Rosenzweig, Mark R & Stark, Oded, 1989. "Consumption Smoothing, Migration, and Marriage: Evidence from Rural India," Journal of Political Economy, University of Chicago Press, vol. 97(4), pages 905-926, August.
    19. 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.
    20. Jalan, Jyotsna & Ravallion, Martin, 1999. "Are the poor less well insured? Evidence on vulnerability to income risk in rural China," Journal of Development Economics, Elsevier, vol. 58(1), pages 61-81, February.
    21. Dercon, Stefan & De Weerdt, Joachim & Bold, Tessa & Pankhurst, Alula, 2006. "Group-based funeral insurance in Ethiopia and Tanzania," World Development, Elsevier, vol. 34(4), pages 685-703, April.
    22. Stefan Dercon & Pramila Krishnan, 2003. "Risk Sharing and Public Transfers," Economic Journal, Royal Economic Society, vol. 113(486), pages 86-94, March.
    23. Grimard, Franque, 1997. "Household consumption smoothing through ethnic ties: evidence from Cote d'Ivoire," Journal of Development Economics, Elsevier, vol. 53(2), pages 391-422, August.
    24. Orazio Attanasio & Abigail Barr & Juan Camilo Cardenas & Garance Genicot & Costas Meghir, 2012. "Risk Pooling, Risk Preferences, and Social Networks," American Economic Journal: Applied Economics, American Economic Association, vol. 4(2), pages 134-167, April.
    25. Dubois, Pierre, 2002. "Consommation, partage de risque et assurance informelle : développements théoriques et tests empiriques récents," L'Actualité Economique, Société Canadienne de Science Economique, vol. 78(1), pages 115-149, Mars.
    26. Murgai, Rinku & Winters, Paul & Sadoulet, Elisabeth & Janvry, Alain de, 2002. "Localized and incomplete mutual insurance," Journal of Development Economics, Elsevier, vol. 67(2), pages 245-274, April.
    27. 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.
    28. Rosenzweig, Mark R & Binswanger, Hans P, 1993. "Wealth, Weather Risk and the Composition and Profitability of Agricultural Investments," Economic Journal, Royal Economic Society, vol. 103(416), pages 56-78, January.
    29. Ethan Ligon, 1998. "Risk Sharing and Information in Village Economies," Review of Economic Studies, Oxford University Press, vol. 65(4), pages 847-864.
    30. Patrick Legros & Andrew Newman, 2007. "Beauty is a beast, frog is a prince :assortative matching in a nontransferable world," ULB Institutional Repository 2013/7022, ULB -- Universite Libre de Bruxelles.
    31. Henriet, Dominique & Rochet, Jean-Charles, 1987. "Some reflections on insurance pricing," European Economic Review, Elsevier, vol. 31(4), pages 863-885, June.
    32. Thomson, William, 1994. "Cooperative models of bargaining," Handbook of Game Theory with Economic Applications,in: R.J. Aumann & S. Hart (ed.), Handbook of Game Theory with Economic Applications, edition 1, volume 2, chapter 35, pages 1237-1284 Elsevier.
    33. Maurizio Mazzocco, 2004. "Saving, Risk Sharing, and Preferences for Risk," American Economic Review, American Economic Association, vol. 94(4), pages 1169-1182, September.
    34. J-P. Platteau & A. Abraham, 2002. "Participatory Development in the Presence of Endogenous Community Imperfections," Journal of Development Studies, Taylor & Francis Journals, vol. 39(2), pages 104-136.
    35. Jacqueline Vanderpuye-Orgle & Christopher Barrett, 2009. "Risk Management and Social Visibility in Ghana," African Development Review, African Development Bank, vol. 21(1), pages 5-35.
    36. Fafchamps, Marcel & Lund, Susan, 2003. "Risk-sharing networks in rural Philippines," Journal of Development Economics, Elsevier, vol. 71(2), pages 261-287, August.
    37. Hayashi, Fumio & Altonji, Joseph & Kotlikoff, Laurence, 1996. "Risk-Sharing between and within Families," Econometrica, Econometric Society, vol. 64(2), pages 261-294, March.
    38. Garance Genicot & Debraj Ray, 2003. "Group Formation in Risk-Sharing Arrangements," Review of Economic Studies, Oxford University Press, vol. 70(1), pages 87-113.
    39. Cochrane, John H, 1991. "A Simple Test of Consumption Insurance," Journal of Political Economy, University of Chicago Press, vol. 99(5), pages 957-976, October.
    40. Narayana R. Kocherlakota, 1996. "Implications of Efficient Risk Sharing without Commitment," Review of Economic Studies, Oxford University Press, vol. 63(4), pages 595-609.
    41. Mace, Barbara J, 1991. "Full Insurance in the Presence of Aggregate Uncertainty," Journal of Political Economy, University of Chicago Press, vol. 99(5), pages 928-956, October.
    42. Fafchamps, Marcel & Gubert, Flore, 2007. "The formation of risk sharing networks," Journal of Development Economics, Elsevier, vol. 83(2), pages 326-350, July.
    43. Tayfun Sönmez & Suryapratim Banerjee & Hideo Konishi, 2001. "Core in a simple coalition formation game," Social Choice and Welfare, Springer;The Society for Social Choice and Welfare, vol. 18(1), pages 135-153.
    44. Santos, Paulo & Barrett, Christopher B., 2006. "Informal Insurance in the Presence of Poverty Traps: Evidence from Southern Ethiopia," 2006 Annual Meeting, August 12-18, 2006, Queensland, Australia 25487, International Association of Agricultural Economists.
    45. repec:dau:papers:123456789/4392 is not listed on IDEAS
    46. Hector Chade & Bart Taub, 2002. "Segmented risk sharing in a continuous-time setting," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 20(4), pages 645-675.
    47. Baton, Bernard & Lemaire, Jean, 1981. "The Core of a Reinsurance Market," ASTIN Bulletin: The Journal of the International Actuarial Association, Cambridge University Press, vol. 12(01), pages 57-71, June.
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    Cited by:

    1. Gao Wayne Yuan & Moon Eunyoung, 2016. "Informal Insurance Networks," The B.E. Journal of Theoretical Economics, De Gruyter, vol. 16(2), pages 455-484, June.
    2. Renaud Bourlès & Juliette Rouchier, 2012. "Evolving Informal Risk-Sharing Cooperatives and Other-Regarding Preferences," Working Papers halshs-00793706, HAL.
    3. Gabrielle Demange, 2017. "The stability of group formation," Revue d'économie politique, Dalloz, vol. 127(4), pages 495-516.
    4. Li, Sanxi & Sun, Hailin & Wang, Tong & Yu, Jun, 2016. "Assortative matching and risk sharing," Journal of Economic Theory, Elsevier, vol. 163(C), pages 248-275.

    More about this item

    Keywords

    Risk Sharing; Group Membership; Social Segmentation;

    JEL classification:

    • C71 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Cooperative Games
    • D3 - Microeconomics - - Distribution
    • D71 - Microeconomics - - Analysis of Collective Decision-Making - - - Social Choice; Clubs; Committees; Associations
    • D81 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Criteria for Decision-Making under Risk and Uncertainty

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