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Collusion and Group Lending with Adverse Selection

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  • Jean-Jacques Laffont

    (IDEI, ARQADE, GREMAQ, Université des Sciences Sociales de Toulouse)

Abstract

In an environment with correlated returns, this paper characterizes optimal lending contracts when the bank faces adverse selection and borrowers have limited liability. Group lending contracts are shown to be dominated by revelation mech- anisms which do not use the ex post observability of the partners\' performances. However, when collusion between borrowers under complete information is allowed, group lending contracts are optimal in the class of simple revelation mechanisms (which elicit only the borrower\'s own private information) and remain useful with extended revelation mechanisms.

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Bibliographic Info

Paper provided by Centro Studi Luca d\'Agliano, University of Milano in its series Development Working Papers with number 147.

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Date of creation: 01 Nov 2000
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Handle: RePEc:csl:devewp:147

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Related research

Keywords: Group lending; adverse selection; collusion; development;

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  1. Ghatak, M. & Guinnane, T.W., 1998. "The Economics of Lending with Joint Liability: Theory and Practice," Papers 791, Yale - Economic Growth Center.
  2. Laffont, Jean-Jacques & N'Guessan, Tchetche, 2000. "Group lending with adverse selection," European Economic Review, Elsevier, vol. 44(4-6), pages 773-784, May.
  3. Jonathan Morduch, 1999. "The Microfinance Promise," Journal of Economic Literature, American Economic Association, vol. 37(4), pages 1569-1614, December.
  4. Besanko, David & Thakor, Anjan V, 1987. "Collateral and Rationing: Sorting Equilibria in Monopolistic and Competitive Credit Markets," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 28(3), pages 671-89, October.
  5. Jean-Jacques Laffont, 2000. "Collusion and Group Lending with Adverse Selection," Development Working Papers 147, Centro Studi Luca d\'Agliano, University of Milano.
  6. Auriol, Emmanuelle & Laffont, Jean-Jacques, 1992. "Regulation by Duopoly," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 1(3), pages 507-33, Fall.
  7. de Aghion, Beatriz Armendariz & Gollier, Christian, 2000. "Peer Group Formation in an Adverse Selection Model," Economic Journal, Royal Economic Society, vol. 110(465), pages 632-43, July.
  8. Khandker, S.R. & Khalily, B. & Khan, Z., 1995. "Grameen Bank: Performance and Sustainability," World Bank - Discussion Papers 306, World Bank.
  9. Riordan, Michael H. & Sappington, David E. M., 1988. "Optimal contracts with public ex post information," Journal of Economic Theory, Elsevier, vol. 45(1), pages 189-199, June.
  10. Jean-Jaques Laffont & Tchétché N'Guessan, 2001. "Group Contracting and Enforcement," Journal of Institutional and Theoretical Economics (JITE), Mohr Siebeck, Tübingen, vol. 157(4), pages 487-, December.
  11. Pitt, M.M. & Khandker, S.R., 1996. "Household and Intrahousehold Impact of the Grameen Bank and Similar Targeted Credit Programs in Bangladesh," World Bank - Discussion Papers 320, World Bank.
  12. Ghatak, Maitreesh, 2000. "Screening by the Company You Keep: Joint Liability Lending and the Peer Selection Effect," Economic Journal, Royal Economic Society, vol. 110(465), pages 601-31, July.
  13. de Meza, David & Webb, David C, 1987. "Too Much Investment: A Problem of Asymmetric Information," The Quarterly Journal of Economics, MIT Press, vol. 102(2), pages 281-92, May.
  14. Cremer, Jacques & McLean, Richard P, 1988. "Full Extraction of the Surplus in Bayesian and Dominant Strategy Auctions," Econometrica, Econometric Society, vol. 56(6), pages 1247-57, November.
  15. Stiglitz, Joseph E & Weiss, Andrew, 1981. "Credit Rationing in Markets with Imperfect Information," American Economic Review, American Economic Association, vol. 71(3), pages 393-410, June.
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