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Search our database of 994 randomized evaluations conducted by our affiliates in 84 countries. To browse summaries of key policy recommendations from a subset of these evaluations, visit the Policy Publications tab.

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Female street vendor in Managua, Nicaragua

Finance, Health

Extending Health Insurance to the Informal Sector Through Microfinance in Nicaragua

Erica Field, Rebecca Thornton , Laurel Hatt, Mursaleena Islam, Freddy Solis Diaz, Martha Gonzalez Monada, Anne Fitzpatrick

This evaluation measured the determinants of insurance enrollment as well as the impacts of having insurance for informal sector workers by randomly varying the costs and convenience of signing up for a government health insurance program available to formal and informal sector workers in Nicaragua. Overall, take-up of the insurance and retention rates were low, and enrolling in the program did...

DNA swab of saliva taken from woman


The Demand for and Impact of Learning HIV Status in Malawi

Rebecca Thornton , Susan Godlonton, Nicole Angotti, Agatha Bula, Lauren Gaydosh, Sara Yeatman, Eitan Zeev Kimchi

While even very small incentives encouraged people to return for their HIV test results, rapid testing in the home had the greatest impact on program take-up. However, for most people, learning status did not substantially change their behavior.

Teenage school girls participate in an HIV/AIDS prevention program in Kenya.

Education, Health, Gender

HIV/AIDS Prevention Through Relative Risk Information for Teenage Girls in Kenya

Information about the relative risks of having sexual relations with older men is an effective way of discouraging unsafe sex among adolescents in Kenya.

Education, Health

Primary School Deworming in Kenya

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...

Education, Health

Balwadi Deworming in India

Edward Miguel , Gustavo Bobonis, Charu Puri Sharma

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.

Education, Health, Gender

Peer Effects, Alcohol, and College Roommates in the United States

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...