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 costs.

Researchers partnered with the Senegalese government to evaluate the impact of a decentralized school grants program on student learning. The program improved test scores overall and for girls in younger grades. The impact was stronger in schools that invested more in human resource training rather than in school materials.

To understand the long-term effectiveness of CBT among adults, researchers evaluated the impact of a short-term CBT program and the distribution of unconditional cash transfers on the behavior of high-risk young men in Liberia. CBT reduced criminal behavior among participants both in the short run, one year following the intervention, and the long run, ten years later.

In India, researchers leveraged a randomized evaluation of the distribution of a new seed variety to assess how the new seed spread within communities and social groups. They found that local social structures, such as the jati-caste system, influenced the extent of seed adoption. In particular, sharing of seeds between farmers within a village occurred more rapidly and extensively in villages with a relatively more homogenous social structure.

Researchers conducted a randomized evaluation of a comprehensive, multi-site workplace wellness program to evaluate the program’s impact on self-reported and clinical health outcomes, health care spending and utilization, and employment outcomes. The program did not have a measurable effect on any other self-reported or clinical measures of health, health care spending or utilization, or employment outcomes.

Researchers conducted a randomized evaluation to test the impact of community-based development on political participation, public goods provision, and individual well-being in Ghana. They found that, although the community engagement program led to changes in local leadership, it was not an effective way to increase public goods provision or socioeconomic status.