Search our database of 1,800+ randomized evaluations conducted by our affiliates in 96 countries. To browse summaries of key policy recommendations from a subset of these evaluations, visit the Policy Publications tab.

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The Impact of Peer Messaging to Combat the Spread of Covid-19 in Zambia

Researchers conducted a randomized evaluation in Zambia to test the impact of a peer-based information campaign, consisting of SMS messages and small cash incentives, on people’s adherence to Covid-19 health protocols. Participants forwarded public health SMSs when they were encouraged to do so, yet...

Rural Finance and Commitment Mechanisms in Agricultural Input Decisions in Mali

In Mali, researchers are working with Innovations for Poverty Action, Soro Yiriwaso (a microfinance institution), and UNRIA (the national network of agriculture input dealers), to evaluate the relative importance of these two factors in farmers’ fertilizer-purchasing decisions.

Secondary School Scholarships to Increase Girls' Skill Development, Empowerment, and Job Opportunities in Niger

Elise Huillery
Mathilde Sage
The Government of Niger, the National Institute of Statistics, and the World Bank partnered with researchers to evaluate the impact of secondary school scholarships for girls on skill development, empowerment, and job opportunities.

Information Campaigns to Increase Mobile Banking Adoption in Ghana

In Ghana, researchers worked with a bank that provides services to low-income customers with limited access to mainstream banking to evaluate the impact of sending pre-recorded informational voice calls and text messages on the adoption of mobile banking. Clients that received messages encouraging...

Meet Your Future – The Effect of Mentoring Ugandan Vocational Students on Employment and Earnings

Livia Alfonsi
Mary Namubiru
Sara Spaziani
In Uganda, researchers introduced a mentoring program to evaluate the impact of interactions between young, successful vocational training graduates and current vocational training students on their employment status and earnings. Students who received mentoring were more likely to be working three...

The Value of Communication for Mental Health

Researchers used a randomized evaluation to measure the impact of providing mobile calling credits to low-income adults on well-being outcomes in Ghana. Overall, the mobile credit intervention increased the ability for individuals to meet unexpected communication needs, particularly when delivered...