Search our database of 1,200+ summaries of randomized evaluations conducted by our affiliates in 96 countries. To browse key policy recommendations from a subset of these evaluations, visit the Policy Publications tab above.

Displaying 1-8 of 1206

Are Rainwater Harvesting Techniques Profitable for Small-Scale Farmers? The Adoption and Impact of RWH Techniques in Niger

In Niger, researchers conducted a randomized evaluation to test the impact of providing training and conditional or unconditional cash transfers on farmers’ adoption and use of an environmental technology, their resulting land use, agricultural production and profitability, and labor allocation.

The Impact of Bid Training on Small Firm Growth in Liberia

Vinayak Iyer
Golvine de Rochambeau
Ridhi Soni
Researchers evaluated the impact of a bid training program on the business performance of local small and medium-sized firms. The bid training led firms to bid on and win more contracts, with the positive impacts concentrated on a quarter of firms.

Increasing Menstrual Hygiene Awareness to Reduce School Dropout among Adolescent Girls in Madagascar

Julieta Vera
Duncan Webb
Researchers evaluated the impact of a program addressing constraints related to hygiene infrastructure and access to sanitary products while addressing social stigma around menstruation, on girls’ learning and psychosocial well-being in Madagascar. The program led to improvements in academic...

Celebrity Twitter endorsement for an immunization public health campaign in Indonesia

Vivi Alatas
Markus Mobius
Cindy Paladines
Researchers conducted a randomized evaluation on measuring the impact of celebrity Twitter endorsement for a child immunization campaign on the public’s opinion and behavior towards immunization. Celebrity endorsement increased Twitter engagement with the immunization campaign, primarily when...

Improving Children’s Mental Health through Remote Mentoring during Covid-19 Shutdowns in Bangladesh

Hashibul Hassan
Liang Choon Wang
Researchers in Bangladesh introduced a remote mentoring program to support mothers as they homeschooled their elementary school children during the pandemic. The program had positive impacts on children’s mental health soon after the intervention, but effects dissipated over time.

Incentivizing Physical Activity to Improve Mental Health During Covid-19 Disruptions in the United States

Osea Giuntella
Kelly Hyde
Silvia Saccardo
Researchers conducted a randomized intervention to measure the impact of financial incentives for reaching daily step goals on physical activity and depression risk during the Covid-19 pandemic, to better understand the association between physical activity and mental health. While program...

Reducing Inequality through a Summer Youth Employment Program in Boston

Researchers used survey data to evaluate short-term outcomes for Boston’s SYEP participants in 2015. They found that the program significantly improved participants’ community engagement and social skills, many job readiness skills, and some academic aspirations.