Search our database of 1,200+ summaries of randomized evaluations conducted by our affiliates in 98 countries. To browse key policy recommendations from a subset of these evaluations, visit the Policy Publications tab above.

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The Effects of Free Drinking Water Treatment on Child Survival in Kenya

Ricardo Maertens
Brandon Joel Tan
Diarrhea is a leading cause of death in children under the age of 5, but adding small amounts of chlorine into water can treat water and prevent a large number of these deaths. Providing free dispensers for chlorine to treat water reduced under-five mortality. Children living in villages with dilute...

The Impact of Peer Messaging to Combat the Spread of Covid-19 in Zambia

Researchers conducted a randomized evaluation in Zambia to test the impact of a peer-based information campaign, consisting of SMS messages and small cash incentives, on people’s adherence to Covid-19 health protocols. Participants forwarded public health SMSs when they were encouraged to do so, yet...

Demand for Information on Environmental Health Risk, Mode of Delivery, and Behavioral Change: Evidence from Sonargaon, Bangladesh

Kazi Matin Ahmed
Alexander van Geen
Ricardo Maertens
In Bangladesh, researchers evaluated the impact of different selling schemes on demand for water testing, and the impact of test results on switching to a safer well. Although group test sales and well safety placards increased substantially the likelihood that households switched to a possibly...

Community Monitoring and Nonfinancial Awards During the Ebola Outbreak in Sierra Leone

Darin Christensen
Bilal Siddiqi
Researchers partnered with the Government of Sierra Leone to evaluate the impact of community monitoring and nonfinancial awards programs on health care utilization and health outcomes. Both programs improved clinic utilization, patient satisfaction, and symptom reporting during the 2014 Ebola...

Improving Non-Communicable Disease Compliance in India

In India, researchers will evaluate the impact of financial incentives, information, and reminders on treatment regimen compliance among patients of a healthcare provider in the slums of Mumbai.

The Impact of Incentives and Marketing on Commercial Toilet Use in Kenya

Johann Caro Burnett
Judy Chevalier
Despite expanding access to sanitary options such as community toilets, many individuals, especially in urban slums, continue to practice open defecation. One potential explanation is that open defecation has become an ingrained habit. Applying lessons from psychology and neuroscience, researchers...

Conditional Cash Transfers and Marriage and Divorce in Mexico

In Mexico, researchers evaluated the impact of PROGRESA, a national conditional cash transfer program, on marriages and divorces. Researchers found that, in the short-term, the program did not affect the number of marriages but increased the number of divorces and separations.

The Impacts of In-kind Food Transfers versus Electronic Vouchers on Poverty Reduction in Indonesia

Elan Satriawan
Sudarno Sumarto
In partnership with the Government of Indonesia, researchers conducted a randomized evaluation to compare the efficacy of vouchers versus in-kind transfers in reducing poverty and improving program delivery. The reform led to an increase in assistance received by eligible households, due to improved...