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 studied the policy consequences of mandated representation of female policymakers by determining whether there was any difference in the provision of social services between male- and female-led village councils. Results suggest that reservations for female leaders affected policy decisions in ways that seemed to better reflect women’s preferences.

Researchers studied the impact a quota system which randomly assigned villages in India to reserve village council positions for women. They found that quotas improved voters’ perceptions of the effectiveness of women as leaders and subsequently improved women’s electoral chances.

Researchers in Kenya collaborated with the NGO International Child Support to measure the returns to different types of fertilizer among local farmers. While results show that all interventions led to increases in yield, rate-of-return calculations indicate that not all were profitable for the average farmer.

Researchers evaluated the impact of a voluntary commitment savings program that allowed individuals to deposit a self-selected amount of their own money that would be forfeited if they did not quit smoking within six months. Results suggested that individuals who were offered the program were much more likely to quit smoking.

Researchers found that both individuals with higher moral standards and individuals who were the least naïve displayed lower default rates than other groups. They also found that survey-based social capital measures did not predict loan default for these individual loans, contrary to the results from a prior study of group loans. Additionally, researchers found that more general personality index measures were not good predictors of default.