Expanding Credit Access: Using Randomized Supply Decisions to Estimate the Impacts

46 Pages Posted: 30 Apr 2007  

Dean S. Karlan

Yale University; Innovations for Poverty Action; Massachusetts Institute of Technology (MIT) - Abdul Latif Jameel Poverty Action Lab; National Bureau of Economic Research (NBER); Centre for Economic Policy Research (CEPR)

Jonathan Zinman

Dartmouth College; Innovations for Poverty Action; Jameel Poverty Action Lab; National Bureau of Economic Research (NBER)

Multiple version iconThere are 3 versions of this paper

Date Written: July 2007

Abstract

Expanding credit access is a key ingredient of development strategies worldwide. Microfinance practitioners, policymakers, and donors have ambitious goals for expanding access, and seek efficient methods for implementing and evaluating expansion. There is less consensus on the role of consumer credit in expansion initiatives. Some microfinance institutions are moving beyond entrepreneurial credit and offering consumer loans. But many practitioners and policymakers are skeptical about "unproductive" lending. These concerns are fueled by academic work highlighting behavioral biases that may induce consumers to over borrow. We estimate the impacts of a consumer credit supply expansion using a field experiment and follow-up data collection. A South African lender relaxed its risk assessment criteria by encouraging its loan officers to approve randomly selected marginal rejected applications. We estimate the resulting impacts using new survey data on applicant households and administrative data on loan repayment, as well as public credit reports one and two years later. We find that the marginal loans produced significant benefits for borrowers across a wide range of economic and well-being outcomes. We also find some evidence that the marginal loans were profitable for the Lender. The results suggest that consumer credit expansions can be welfare-improving.

Keywords: access to credit, microfinance, consumer loans

JEL Classification: G21, M20

Suggested Citation

Karlan, Dean S. and Zinman, Jonathan, Expanding Credit Access: Using Randomized Supply Decisions to Estimate the Impacts (July 2007). Center for Global Development Working Paper No. 108; Yale University Economic Growth Center Discussion Paper No. 956. Available at SSRN: https://ssrn.com/abstract=982921

Dean S. Karlan (Contact Author)

Yale University ( email )

Box 208269
New Haven, CT 06520-8269
United States

Innovations for Poverty Action ( email )

1731 Connecticut Ave, 4th floor
New Haven, CT 20009
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Massachusetts Institute of Technology (MIT) - Abdul Latif Jameel Poverty Action Lab ( email )

E60-246
77 Massachusetts Avenue
Cambridge, MA 02139
United States

National Bureau of Economic Research (NBER)

1050 Massachusetts Avenue
Cambridge, MA 02138
United States

Centre for Economic Policy Research (CEPR) ( email )

77 Bastwick Street
London, EC1V 3PZ
United Kingdom

Jonathan Zinman

Dartmouth College ( email )

Hanover, NH 03755
United States
603-646-0075 (Phone)

HOME PAGE: http://www.dartmouth.edu/~jzinman/

Innovations for Poverty Action

1731 Connecticut Ave, 4th floor
New Haven, CT 20009
United States

Jameel Poverty Action Lab

E60-246
77 Massachusetts Avenue
Cambridge, MA 02139
United States

National Bureau of Economic Research (NBER)

1050 Massachusetts Avenue
Cambridge, MA 02138
United States

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