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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Mask Up! Testing strategies to increase mask use in Kenya

Aleksandra Jakubowski
Michael Walker
Although conflicting recommendations have been issued, recent evidence suggests that face masks may significantly reduce the spread of SARS-CoV-2. However, questions remain on how to effectively promote mask adoption. Research are conducting a randomized evaluation to evaluate the impact of free...

The Roles of Water Treatment Subsidies and Community Health Workers in Improving Child Health and Chlorine Usage in Malawi

Basimenye Nhlema
Zachary Wagner
Aaron Wolf
Emily Wroe
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...

Prescribing Food as Medicine among Individuals Experiencing Diabetes and Food Insecurity in the United States

John Bulger
John Cawley
Andrea Feinberg
Diabetes is one of the most prevalent diseases in the United States and is closely linked to food insecurity. Researchers evaluated the impact of an intensive food-as-medicine program that provides fresh food and diabetes education on health and health care utilization for individuals experiencing...

The Impact of Financial Incentives for Traditional Birth Attendants on Postnatal Care Use in Nigeria

Adanna Chukwuma
Chinyere Mbachu
Researchers evaluated whether giving traditional birth attendants (TBAs) cash incentives for maternal postnatal referrals can increase uptake of skilled maternal postnatal care. Cash rewards increased referrals made by TBAs by 182 percent and more than tripled the proportion of clients that attended...

The Impact of Community-Based Environmental Health Promotion Program on Child Health in Western Rwanda

Thomas Clasen
Erin Crossett
Karen Grepin
Leodomir Mfura
Bernard Ngabo Rwabufigiri
Wolf-Peter Schmidt
Sheela Sinharoy
Ronald Wendt
In western Rwanda, researchers evaluated the impact of community health clubs on household take-up of healthy behaviors and on the health of children under 5 years of age. The program had minimal impact on household behaviors and no impact on caregiver-reported rates of diarrhea among children under...

Using Peer Pressure to Encourage Handwashing in Argentina

Researchers examined the impact of peer pressure on handwashing behavior by varying whether men using a restroom in Buenos Aires, Argentina were observed by another restroom user. They found that being observed increased urinal flushing by 26.7 percent and handwashing by 19 percent, suggesting that...

Tailored Microcredit in Rural Morocco

Researchers are evaluating the impact of improved microcredit loan design on its take-up, as well as the welfare and business conditions of borrowers.

Kenyan Government Bonds as a Savings Tool

Charity Wayua
Researchers investigated the impact of a new product that allowed Kenyans to invest small amounts of money in low-risk, high-return infrastructure bonds using their mobile phones. However, lack of awareness and low product take-up, triggered by logistical issues during implementation and a pending...