Describes finding from an experiment in rural India that suggest that the structure of microcredit loan contracts can help people with self-discipline problems who lack suitable savings products.

Using two new datasets, the authors examine whether the presence of banks affects the profitability and outreach of microfinance institutions. They find evidence that competition matters.  Greater bank penetration in the overall economy is associated with microbanks pushing toward poorer markets, as reflected in smaller average loans sizes and greater outreach to women. The evidence is particularly strong for microbanks relying on commercial-funding and using traditional bilateral lending contracts (rather than group lending methods favored by microfinance NGOs).  The authors consider plausible alternative explanations for the correlations, including relationships that run through the nature of the regulatory environment and the structure of the banking environment, but fail to find strong support for these alternative hypotheses.

Presents the results of a field experiment and follow-up survey to measure impacts of a credit expansion for microentrepreneurs in Manila.

Group liability in microcredit purports to improve repayment rates through peer screening, monitoring, and enforcement. However, it may create excessive pressure, and discourage reliable clients from borrowing. Two randomized trials tested the overall effect, as well as specific mechanisms. The first removed group liability from pre-existing groups and the second randomly assigned villages to either group or individual liability loans. In both, groups still held weekly meetings. We find no increase in default and larger groups after three years in pre-existing areas, and no change in default but fewer groups created after two years in the expansion areas.

Describes the challenges of providing reliable banking services to the poorest customers in a commercially viable way.

We conducted a field experiment to test whether savings constraints prevent the self-employed from increasing the size of their businesses. We opened interest-free savings accounts in a village bank in rural Kenya for a randomly selected sample of poor daily income earners. Despite the fact that the bank charged substantial withdrawal fees, take-up and usage was high among women and the savings accounts had substantial, positive impacts on their productive investment levels and expenditures. These results imply that a substantial fraction of daily income earners face important savings constraints and have a demand for formal saving devices (even for those that offer negative de facto interest rates).

Examines the effect commitment mechanisms can have in helping an individual quit smoking.

Assessing the effects of access to credit on mental health.