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You Can Pick Your Friends, but You Need to Watch Them: Loan Screening and Enforcement in a Referrals Field Experiment

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  • Bryan, Gharad

    (London School of Economics and Innovations for Poverty Action)

  • Karlan, Dean

    (Yale University and MIT)

  • Zinman, Jonathan

    (Dartmouth College and MIT)

Abstract

We examine a randomized trial that allows separate identification of peer screening and enforcement of credit contracts. A South African microlender offered half its clients a bonus for referring a friend who repaid a loan. For the remaining clients, the bonus was conditional on loan approval. After approval, the repayment incentive was removed from half the referrers in the first group and added for half those in the second. We find large enforcement effects, a $12 (100 Rand) incentive reduced default by 10 percentage points from a base of 20%. In contrast, we find no evidence of screening.

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Bibliographic Info

Paper provided by Yale University, Department of Economics in its series Working Papers with number 99.

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Date of creation: Jan 2012
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Handle: RePEc:ecl:yaleco:99

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  1. Orazio Attanasio & Britta Augsburg & Ralph de Haas & Emla Fitzsimons & Heike Harmgart, 2011. "Group lending or individual lending? Evidence from a randomised field experiment in Mongolia," IFS Working Papers W11/20, Institute for Fiscal Studies.
  2. Dean S. Karlan & Jonathan Zinman, 2005. "Observing Unobservables: Identifying Information Asymmetries with a Consumer Credit Field Experiment," Working Papers 911, Economic Growth Center, Yale University.
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  12. Karlan, Dean S., 2007. "Social Connections and Group Banking," CEPR Discussion Papers 6194, C.E.P.R. Discussion Papers.
  13. Sylvain Chassang & Gerard Padro I Miquel & Erik Snowberg, 2012. "Selective Trials: A Principal-Agent Approach to Randomized Controlled Experiments," American Economic Review, American Economic Association, vol. 102(4), pages 1279-1309, June.
  14. Bond, Philip & Rai, Ashok S., 2008. "Cosigned vs. group loans," Journal of Development Economics, Elsevier, vol. 85(1-2), pages 58-80, February.
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  16. Liran Einav & Amy Finkelstein & Stephen P. Ryan & Paul Schrimpf & Mark R. Cullen, 2013. "Selection on Moral Hazard in Health Insurance," American Economic Review, American Economic Association, vol. 103(1), pages 178-219, February.
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