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

Nicoló Tomaselli
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...

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...

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.

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.

Vouchers for Private Schooling in Colombia

Joshua Angrist
Erik Bloom
Elizabeth King
Colombia used lotteries to distribute vouchers which partially covered the cost of private secondary school for students who maintained satisfactory academic progress. Three years after the lotteries, winners were about 10 percentage points more likely to have finished 8th grade, primarily because...

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.