Researchers varied patients’ information about a discount on treatment for simple malaria and measuring take-up of treatment to identify the factors driving overtreatment. While patient pressure on doctors in response to the discount led to excess prescription of antimalarials, there was no evidence of doctors strategically using the vouchers to direct patients toward expensive treatment options.

Researchers evaluated the impact of two light-touch interventions (an orientation video for families, and a guided conversation between women and their families) on gender norms related to women’s work and increase labor force participation. Researchers did not find meaningful changes in support of women’s work nor in rates of employment among women that received these interventions.

Researchers conducted a randomized evaluation to gauge whether a short-term reading tutoring program could improve a range of student educational outcomes in the short- and medium-term (up to eight years after the program). They found that the program increased language test scores in the short term and improved several outcomes in the medium term, including reducing students’ probability of dropout, increasing their probability of graduating on time from primary and secondary school, and improving attendance, grades and test scores.

Researchers conducted a randomized evaluation in the Indian state of Tamil Nadu on the impact of adding an additional education-focused worker in early childhood development centers on students’ learning and health outcomes. The program increased the time spent on pre-school education, boosting learning in math, reading, and executive function. It also allowed the main worker to devote more time to health and nutrition, reducing severe malnutrition and stunting.

In collaboration with China’s National Environmental Inspection Program, researchers are evaluating the impact of reporting firms’ hourly emissions data to environmental inspectors on the likelihood of firms being inspected, local air pollution, local economic output, and health outcomes.

Researchers partnered with a rural development organization to evaluate financial incentives for voluntary groundwater conservation among smallholder farmers in Gujarat, India.

Researchers conducted a correspondence study assessing property managers’ responses to rental listing inquiries from prospective tenants with distinctively Black, Hispanic/Latinx, or white names in the United States. Property managers were significantly less likely to respond to messages from prospective Black or Hispanic/Latinx renters than white ones.

Researchers designed a free online tutoring program delivered by volunteer university students to test whether it could mitigate the effects of school closures during the COVID-19 outbreak. They found that the program had a positive outcome on students' learning outcomes, socio-emotional skills, and psychological well-being.

This evaluation tested whether offering insurance policies that required enrollment at different group levels mitigated the risk of individuals who are more likely to need health insurance being more likely to purchase policies. When allowed to purchase insurance at the individual level, those most likely to require health care were disproportionately more likely to purchase insurance, but offering policies that required larger groups (such as households) to enroll reduced this effect.

Researchers partnered with an employer in Addis Ababa to assess the impact of a small monetary incentive to apply for a job or a higher wage offer on the quality of applicants to a vacancy for a clerical position. Both of these changes increased the quality of applicants by similar amounts.

Researchers conducted a randomized evaluation to test whether giving vocational trainees richer information about potential jobs improved their employment outcomes. Researchers provide suggestive evidence that with the information, trainees made better decisions on whether to continue the training: those who saw the program as a poor fit for their job ambitions dropped out, while those who valued the training’s job opportunities stayed.

Researchers evaluated the impact of general and personalized information regarding the relationship between wood burning and indoor pollution on households’ knowledge of pollution and their pollution mitigation efforts. Both general and personalized information increased households’ awareness of pollution, but only personalized information improved households’ measured air quality.

Researchers provided small one-time grants to microenterprises in Sri Lanka to measure the impact of the additional capital on business profits two and five years later. They found that cash and in-kind grants increased business profits for male owners in the short and long term, but did not lead to an increase in business profits for female business owners.

Much economic activity in low-income countries takes place through cooperative or collective organizations. Researchers in the Indian state of Karnataka conducted a randomized evaluation to study whether collective incentive payments to village cooperatives of dairy farmers could increase milk quality by reducing microbial contamination. Incentive payments increased cleanliness and point to the importance of leadership and social networks in cooperative production. However, a third of cooperative managers declined payments when they had to publicly disclose them.