Search our database of 1,200+ summaries of randomized evaluations conducted by our affiliates in 97 countries. To browse key policy recommendations from a subset of these evaluations, visit the Policy Publications tab above.

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Reducing the Incidence of Vote Buying in Uganda

During the 2016 Ugandan elections, researchers conducted a randomized evaluation of an anti-vote-buying campaign to study voter behavior and electoral outcomes. Overall, the campaign did not reduce the extent of vote buying, but it had substantial effects on electoral outcomes.

The Impact of Mobile-Linked Savings Accounts in Sri Lanka

Researchers evaluated the impact of bank accounts that allowed mobile deposits on savings behavior in Sri Lanka. Few account holders used the service frequently, even when offered for free. Mobile-linked accounts increased savings deposits with the partner bank and formal banks more generally but...

The Effects of Varying Input Market Timing and Access to Credit on Farmers’ Agricultural Investment in Mali

In Mali, researchers conducted a randomized evaluation to test how the design and timing of a physical market for inputs (village input fairs) with varying levels of credit access affected farmers’ investment decisions. They found that farmers with access to credit from VIFs organized after harvest...

Evaluating the Socioeconomic Impacts of Western Seed's Hybrid Maize Program

Samuel Bird
Mary Mathenge
Timothy Njagi
Researchers are using Western Seed Company's expansion into new areas to evaluate the socio-economic effects of the hybrid maize program in Western and Central Kenya.

Improving Immunization Coverage Through Incentives, Reminders, and Social Networks in India

Victor Chernozhukov
Suresh Dalpath
Mert Demirer
Iván Fernández-Val
Matthew Jackson
Francine Loza
Anna Schrimpf
Maheshwor Shrestha
Researchers worked with the state government to evaluate the impact of three programs to build demand for vaccination: local immunization ambassadors, small, non-financial incentives, and tailored SMS reminders. The most effective policy option increased measles vaccination by approximately 55...

The Impact of Entrepreneurship Training Using Imagery Techniques in Colombia

Researchers are designing and evaluating a soft skills training program that incorporates imagery for entrepreneurs who have experienced violence or other traumatic or challenging life circumstances in Bogotá, Colombia.

India’s Happiness Curriculum to Improve Youth Mental Health, Learning, and Development

Avinash Moorthy
Researchers are examining the impact of a socioemotional learning curriculum on student mental health, academic achievement, and other social outcomes.

Credit, Uncertainty, and Monitoring for Technology Adoption

In Senegal, researchers are testing a new contract arrangement between farmers and cooperatives that includes credit, training, and a price premium for certified low-aflatoxin groundnuts on farmers’ decisions to adopt Aflasafe, aflatoxin levels, and output sales.