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Microfinance and markets: New results for the Besley-Coate group lending model


  • Lutz Arnold
  • Johannes Reeder
  • Susanne Steger


Microfinance currently experiences a huge inflow of private investors and a surge in the use of market instruments. This raises the question of what market equilibria in microfinance markets look like and which kinds of market failure tend to afflict them. The present paper conducts an equilibrium analysis of Besley and Coate’s (1995) group lending model with enforcement problems.We show that a consideration of repayment rates alone is not sufficient to predict market outcomes, as it is biased towards group lending. Market equilibria are likely to exhibit the same kinds of market failure as equilibria in adverse selection models, viz., financial fragility, redlining, and credit rationing. Social sanctions ameliorate these problems, but do not eliminate them.

Suggested Citation

  • Lutz Arnold & Johannes Reeder & Susanne Steger, 2009. "Microfinance and markets: New results for the Besley-Coate group lending model," Working Papers 067, Bavarian Graduate Program in Economics (BGPE).
  • Handle: RePEc:bav:wpaper:067_reeder

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    References listed on IDEAS

    1. N. Gregory Mankiw, 1986. "The Allocation of Credit and Financial Collapse," The Quarterly Journal of Economics, Oxford University Press, vol. 101(3), pages 455-470.
    2. Besley, Timothy & Coate, Stephen, 1995. "Group lending, repayment incentives and social collateral," Journal of Development Economics, Elsevier, vol. 46(1), pages 1-18, February.
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    microfinance; group lending; enforcement;

    JEL classification:

    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages


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