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.

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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...

Building Trust in Fertilizer Quality Among Farmers in Tanzania

Annemie Maertens
Christopher Magomba
Researchers conducted an evaluation to test the impact of an information campaign about fertilizer quality on farmers’ beliefs and their purchase and use of fertilizer. The information campaign led farmers to change their beliefs about the quality of fertilizer available in local markets and to buy...

Governance Interventions to Improve Public Health Delivery in Uganda

Joshua Greenberg
The researcher conducted a pilot randomized evaluation to test the feasibility of a regular community accountability meeting program and a politician health leadership program, as well as the feasibility of associated data collection activities. Both interventions realized considerable stakeholder...

Impacts of Flexible Loans on Borrower Behavior and Microenterprise Outcomes in Colombia

Lasse Brune
Xavier Giné
Researchers evaluated the impact of a flexible microloan product on new clients' repayment behavior, business outcomes, and client satisfaction. The results showed that the flexible loan led to some shifts in investment behavior but had no average impact on revenue or profits and led to higher...

Improving Targeting of a Conditional Cash Transfer Program in Indonesia

Vivi Alatas
Ririn Purnamasari
Matthew Wai-Poi
Researchers conducted a randomized evaluation with the Indonesian government that compared self-targeting to automatic screening in the context of a conditional cash transfer program. Requiring households to apply for a cash transfer program in Indonesia discouraged rich households from seeking out...

Informing Policy with Research in Brazil

Juan Francisco Santini
Researchers partnered with the National Confederation of Municipalities (CNM) in Brazil to evaluate the impact of access to research results on policymakers’ demand for research findings and interest in adopting evidence-informed policies. Policymakers were willing to pay for research findings and...

The Impact of Sustained Cognitive Effort on Student Performance in India

Researchers evaluated the impact of practicing sustained cognitive activity on cognitive endurance and school performance in Lucknow, India. Students that spent additional time engaging in sustained cognitive effort received higher grades in all of their classes, improved their performance on tests...