Search our database of 1,200+ summaries of randomized evaluations conducted by our affiliates in 99 countries. To browse key policy recommendations from a subset of these evaluations, visit the Policy Publications tab above.

Displaying 473-480 of 1267

Improving Yields and Health through a High-Yielding Rice Variety (NERICA) in Sierra Leone

Improved crop varieties have the potential to produce higher yields than traditional varieties, but rural farmers often do not have the knowledge to properly grow these crops. Researchers seek to understand how providing different amounts of training on how to cultivate NERICA-3, a high-yield but...

Seed Fairs for the Diffusion of New Crop Varieties in India

Manzoor H. Dar
Researchers conducted a randomized evaluation to test whether organizing short learning sessions for villagers about early adopters’ use of a flood-tolerant rice seed variety, Swarna-Sub1, impacted other farmers’ adoption of it. These “farmer field days” were a cost-effective strategy to improve...

The Impact of Job Networks on Women's Recruitment in Malawi

Researchers introduced a recruitment drive for a firm in Malawi to evaluate the impact of referral-based hiring on women’s employment at the company. Results from the randomized evaluation indicate that men systematically referred fewer women, and women’s referral of other qualified women was not...

Improving Security through Concentrated Policing in Bogotá, Colombia

Daniel Mejia
Daniel Ortega
In Bogotá, Colombia, researchers partnered with the city to measure the impact of either concentrated policing, increased municipal clean-ups, or both on crime reduction and displacement. The evaluation found that the two approaches reduced crime on targeted streets when implemented together, but...

Evaluating Post-Secondary Aid: Enrollment, Persistence, and Projected Completion Effects

Joshua Angrist
Sally Hudson
Researchers partnered with the Susan Thompson Buffett Foundation to randomly offer scholarships to Nebraska high school graduates who applied for financial assistance. Initial results from the ongoing study indicate that scholarship offers increased college enrollment and persistence while shifting...

Sahel Women’s Empowerment and Demographic Dividend Project Niger: Safe Spaces and Future Husband Clubs

Researchers are partnering with the Government of Niger to evaluate the impact of empowerment clubs providing adolescents girls with life skills trainings; gender norms clubs designed to change gender-related norms among young men; or both clubs implemented in the same villages on gender norms and...

Promoting Safe Sex Among Adolescents in Tanzania

Jennifer Muz
Researchers, in partnership with BRAC, are conducting a randomized evaluation with both male and female adolescents in Tanzania to identify the differential impacts of demand side and supply side interventions and to better understand the role males play in affecting sexual and reproductive health...

The Impact of Early Childhood Psychosocial Stimulation on Child Development Outcomes in Odisha, India

Researchers evaluated the impact of an early childhood psychosocial stimulation program on child development outcomes in urban Odisha, India. They found that a home-visiting stimulation program led to greater development outcomes, particularly for boys, stunted children, and children with more...