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Kenya, East Africa's largest economy, is struggling with an ageing energy infrastructure and low connectivity to the power grid. William Jack and affiliate Tavneet Suri (MIT) study the impact of off-grid solar power on small retailers in Nairobi.

Researchers partnered with Opportunity International Savings and Loans Limited (OISL) to conduct a randomized evaluation to test the impact of high-frequency interactive voice response (IVR) calls on people’s use of mobile banking services and their financial behaviors in Ghana. People who received...

In partnership with Jacaranda Health, researchers evaluated a family planning program that provided pregnant women with varying combinations of vouchers for free modern contraception and reminders of the importance of family planning. While none of the combinations increased self-reported use of...

Researchers conducted a randomized evaluation to test the impact of an entertainment-education short film informational campaign (i.e. edutainment campaign) designed to inform adolescent girls and parents of the costs of child marriage on the norms and perceptions about child marriage in Indonesia...

Certified teachers were no more likely than non-applicants to be effective at improving students’ test scores, but were more effective than unsuccessful applicants. Researchers found that estimates of teacher effectiveness based on test scores from previous years were a strong predictor of student...

In developing countries, public worker absence is a key obstacle to delivering services to the poor. This problem may occur when politicians reward their supporters with public sector jobs, making it difficult for communities to hold public servants accountable. Researchers evaluated the...

Researchers evaluated the impact of providing schools with an unconditional cash grant, a teacher incentive program, or both on student learning. The cash grant had no impact on student learning, while the teacher incentive program had mixed results. However, combining both programs together had an...

Researchers conducted a randomized evaluation in Cape Town, South Africa to measure the effect of prepaid meters on households’ electricity use and utility revenue. They found that prepaid meters led households to reduce their electricity consumption, but helped the utility company recover more...