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 lending claims to improve repayment rates and lower...

Can one teach entrepreneurship, or is it a fixed personal characteristic? Most academic and policy discussion on microentrepreneurs in developing countries focuses on their access to credit, and assumes their human capital to be fixed. However, a growing number of microfinance organizations are...

Microfinance has been heralded as an effective way to address imperfections in credit markets. From a theoretical perspective, however, the success of microfinance contracts has puzzling elements. In particular, the group-based mechanisms often employed are vulnerable to free-riding and...

Many social experiments are run in multiple waves, or are replications of earlier social experiments. In principle, the sampling design can be modified in later stages or replications to allow for more efficient estimation of causal effects. We consider the design of a two-stage experiment for...

Female “empowerment” has increasingly become a policy goal, both as an end to itself and as a means to achieving other development goals. Microfinance in particular has often been argued, but not without controversy, to be a tool for empowering women. Here, using a randomized controlled...

Can one teach basic entrepreneurship skills, or are they fixed personal characteristics? Most academic and development policy discussions about microentrepreneurs focus on their access to credit, and assume their human capital to be fixed. The self-employed poor rarely have any formal training...

Information asymmetries--which occur when one party to a transaction has more or better information than the other party--such as moral hazard or adverse selection, can cause inefficiency, overinvestment, or poverty traps. Unfortunately, they are difficult to identify in practice. This working...

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...

Policymakers often urge microfinance institutions to increase interest rates to eliminate reliance on subsidies. However, existing research provides little evidence on interest rate sensitivities in MFI target markets as well as little guidance on how to derive rates. MFI policymakers generally...

Expanding access to credit is a key ingredient of development strategies worldwide, and the microfinance industry is generally credited with success in helping to alleviate poverty and improve the lives of the poor. But there is less consensus on the role of consumer loans in credit expansion...