Researchers designed and implemented a commitment savings product called a SEED (Save, Earn, Enjoy Deposits) account, which restricted access to savings, thus potentially helping with either self-control or family-control issues. After one year, the commitment savings product led to increased savings and more decision making power in the household for women.

Researchers evaluated whether a package of services, designed to help link smallholder farmers to commercial banks, retail farm suppliers, transportation services, and exporters, could help small farmers in Kenya adopt, finance, and market export crops, and thus make more income. One year after the program began, individuals who received the program were more likely to be growing an export crop, but incomes did not significantly improve.

In this study, researchers randomly selected existing group-lending centers to convert to an individual liability model. They found no difference in repayment rates between individuals assigned individual liability and those assigned group liability, no change in overall profitability for the bank, and a reduction in voluntary savings for those removed from joint liability.

In collaboration with PRISMA, a Peruvian NGO offering credit through village banks, researchers designed and implemented a new loan product, which required new clients to be sponsored by existing clients, to measure the relative importance of social networks and prices for borrowing in shantytowns near Lima. Results demonstrated that borrowers were more likely to obtain sponsorship from friends. Non-friends were more likely to sponsor higher quality borrowers.

Researchers evaluated a mass school-based deworming program in Western Kenya, and found that deworming substantially improved health and school participation of treated children, as well as of untreated children in both treatment schools and neighboring schools. The program reduced school absenteeism by more than one-quarter, and was far cheaper than alternative ways of boosting school participation.

This study evaluated the impact of a preschool nutrition and health project that targeted anemia in the slums of Delhi, India on child health and school attendance. Results showed the program positively impacted weight-gain and school attendance, particularly for groups with high base-line rates of anemia.

Researchers provided educational flipcharts to 89 randomly selected Kenyan primary schools and evaluated their impact on student learning, comparing retrospective and prospective estimates. In the prospective study, the estimated impact of flipcharts on student test scores was found to be close to zero. In contrast, the retrospective study seriously overestimated the impact of the intervention.

Colombia used lotteries to distribute vouchers which partially covered the cost of private secondary school for students who maintained satisfactory academic progress. Three years after the lotteries, winners were about 10 percentage points more likely to have finished 8th grade, primarily because they were less likely to repeat grades, and scored 0.2 standard deviations higher on achievement tests. In the long-run, the PACES program increased secondary school completion rates by 15 to 20 percent.

Researchers conducted a randomized evaluation to measure the impact of having a roommate who drank alcohol frequently before college on college students' grade point averages (GPAs). Results show that, while female students' GPAs were not affected by their roommate's drinking prior to college, male students' GPAs were significantly reduced by being assigned to a roommate who drank frequently before college.

Researchers in the United States assessed the impact on college students of having a roommate from a different race. White students assigned to a black roommate were more likely to endorse affirmative action policies than those assigned to a white roommate. Other factors, such as having roommates from high-income or low-income backgrounds, also influenced students' behavior and attitudes towards social issues.

In partnership with International Child Support, researchers designed and evaluated an incentives program that provided salary bonuses to teachers in Kenya based on the performance of their school as a whole on annual district exams. While results show that the incentives program led to an increase in student test scores, researchers believe that this increase was due to improved test-taking strategies and "cramming," rather than an increase in overall knowledge. The program did not have an impact on test scores in the long-run.

Researchers partnered with Partners in Health (PIH) to conduct a randomized evaluation to test the impact of monthly coupons and different CHW delivery methods on chlorine usage and child health outcomes in Southern Malawi. They find that the coupon program had stronger impacts on both outcomes and was more cost-effective than having CHWs distribute free chlorine to households during routine monthly visits.

Researchers evaluated the spillover effects of a nationwide Medicare bundled payment reform on privately insured Medicare Advantage (MA) patients who were not targeted by the reform. They found that the bundled payment reform’s spillover effect on non-targeted MA patients was similar to the bundled payment reform’s direct effect on targeted Traditional Medicare patients.

Researchers evaluated whether offering market vendors cash grants to pay off existing debt and financial training influenced future borrowing behavior. While market vendors were less likely to borrow and borrowed in smaller amounts in the short-term, most returned to debt within six weeks.

In Kenya, researchers matched farmers with subsidized, trained watchmen to evaluate the effect of improved farm security on farmers’ decision-making, agricultural productivity, and conflict with neighbors. Security was shown to increase and in response, farmers made different cropping, time use, and investment decisions, had higher agricultural yields, and experienced less conflict with their neighbors.