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91. Group Versus Individual Liability: A Field Experiment in the Philippines

Author:
Xavier Giné and Dean Karlan
Publication Date:
01-2007
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
Group liability is often portrayed as the key innovation that led to the explosion of the microcredit movement, which started with the Grameen Bank in the 1970s and continues on today with hundreds of institutions around the world. Group liability claims to improve repayment rates and lower transaction costs when lending to the poor by providing incentives for peers to screen, monitor and enforce each other's loans. However, some argue that group liability creates excessive pressure and discourages good clients from borrowing, jeopardizing both growth and sustainability. Therefore, it remains unclear whether group liability improves the lender's overall profitability and the poor's access to financial markets. We worked with a bank in the Philippines to conduct a field experiment to examine these issues. We randomly assigned half of the 169 pre-existing group liability “centers” of approximately twenty women to individual-liability centers (treatment) and kept the other half as-is with group liability (control). We find that converting to individual liability from group liability but keeping other aspects of group lending such as weekly repayment meeting does not affect the repayment rate, but leads to higher outreach by attracting new clients.
Topic:
Economics, Markets, and Poverty
Political Geography:
Philippines and Southeast Asia

92. Observing Unobservables: Identifying Information Asymmetries with a Consumer Credit Field Experiment

Author:
Dean Karlan and Jonathan Zinman
Publication Date:
01-2007
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
Information asymmetries are important in theory but difficult to identify in practice. We estimate the presence and importance of adverse selection and moral hazard in a consumer credit market using a new field experiment methodology. We randomized 58,000 direct mail offers issued by a major South African lender along three dimensions: 1) an initial "offer interest rate" featured on a direct mail solicitation; 2) a "contract interest rate" that was revealed only after a borrower agreed to the initial offer rate; and 3) a dynamic repayment incentive that extended preferential pricing on future loans to borrowers who remained in good standing. These three randomizations, combined with complete knowledge of the Lender's information set, permit identification of specific types of private information problems. Our setup distinguishes adverse selection from moral hazard effects on repayment, and thereby generates unique evidence on the existence and magnitudes of specific credit market frictions. We find evidence of moral hazard and weaker evidence for adverse selection. A rough calibration suggests that perhaps 7% to 16% of default is due to asymmetric information problems. Asymmetric information may help explain the prevalence of credit constraints even in a market that specializes in financing high-risk borrowers at very high rates.
Topic:
Civil Society, Development, Markets, and Poverty
Political Geography:
South Africa

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

Author:
Dean Karlan and Jonathan Zinman
Publication Date:
01-2007
Content Type:
Working Paper
Institution:
Center for Global Development
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 overborrow. 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 borrower behavior and well-being, and administrative data on loan repayment. We find that the marginal loans increased credit access and produced measurable benefits in the form of increased employment, reduced hunger, and reduced poverty. The marginal loans also appear to have been profitable for the lender. The results must be interpreted with caution but suggest that consumer credit expansions can be welfare-improving.
Topic:
Development, Markets, and Poverty
Political Geography:
Africa and South Africa

94. Social Cohesion, Institutions

Author:
William Easterly, Michael Woolcock, and Jozef Ritzen
Publication Date:
08-2006
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
We present evidence that measures of “social cohesion,” such as income inequality and ethnic fractionalization, endogenously determine institutional quality, which in turn casually determines growth.
Topic:
Civil Society, Development, Government, and Poverty

95. A Primer on Foreign Aid

Author:
Steven Radelet
Publication Date:
07-2006
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
Controversies about aid effectiveness go back decades. Some experts charge that aid has enlarged government bureaucracies, perpetuated bad governments, enriched the elite in poor countries, or just been wasted. Others argue that although aid has sometimes failed, it has supported poverty reduction and growth in some countries and prevented worse performance in others. This new working paper by CGD senior fellow Steve Radelet explores trends in aid, the motivations for aid, its impacts, and debates about reforming aid. It begins by examining aid magnitudes and who gives and receives aid. It discusses the multiple motivations and objectives of aid, some of which conflict with each other. It then explores the empirical evidence on the relationship between aid and growth, which is divided between research that finds no relationship and research that finds a positive relationship (at least under certain circumstances). It also examines some of the key challenges in making aid more effective, including the principal-agent problem and the related issue of conditionality, and concludes by examining some of the main proposals for improving aid effectiveness.
Topic:
International Relations, Development, Humanitarian Aid, and Poverty

96. Stormy Days on an Open Field: Asymmetries in the Global Economy

Author:
Nancy Birdsall
Publication Date:
02-2006
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
Openness is not necessarily good for the poor. Reducing trade protection has not brought growth to today's poorest countries, and open capital markets have not been good for the poorest households in emerging market economies. In this paper I present evidence on these two points. First, countries highly dependent on primary exports two decades ago, despite their substantial engagement in trade and a marked decline in their tariff rates in the 1990s, have failed to grow. Second, within high-debt emerging market economies the financial crises of the last decade, whether induced by domestic policy problems or global contagion, have been especially costly for the poor (in welfare terms if not in terms of absolute income losses). I discuss the asymmetries in the global economy that help explain why countries and people cannot always compete on equal terms on the “level playing field” of the global economy.
Topic:
Economics, Globalization, International Trade and Finance, Poverty, and Financial Crisis