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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houses in Medellín, Colombia

Contesting Criminal Gang Governance in Medellin: The Impacts of Intensive Municipal Governance and Community Organization on Gang Control and Governing of Neighborhoods

Chris Blattman
Gustavo Duncan
Benjamin Lessing
Santiago Tobón
In partnership with the City of Medellín, researchers randomly introduced a program that intensified government outreach to gang-controlled neighborhoods. The study found no evidence that the city’s intervention reduced gang rule.
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The Effect of Text Message Reminders on Failure to Appear in Court in the Rural United States

Researchers conducted a randomized evaluation to test the impact of text message reminders on rates of failure to appear in court (FTA) among people who are unhoused and housed in rural Shasta County, California. The reminders reduced FTA rates for the housed population, but did not impact FTA rates...
Recruiter reviews three resumes at a desk with coffee and a laptop

Increasing the Demand for Workers with a Criminal Record in the United States

Zoe Cullen
Will Dobbie
Mitchell Hoffman
Workers with criminal records face substantially lower chances of securing employment compared to similar workers without such records. Researchers evaluated the effectiveness of different approaches, including wage subsidies, crime and safety insurance, past performance reviews, criminal record...

The Impact of Cognitive Behavioral Therapy and Cash Transfers on High-Risk Young Men in Liberia

Chris Blattman
Sebastian Chaskel
Julian Jamison
Margaret Sheridan
To understand the long-term effectiveness of CBT among adults, researchers evaluated the impact of a short-term CBT program and the distribution of unconditional cash transfers on the behavior of high-risk young men in Liberia. CBT reduced criminal behavior among participants both in the short run...
Market with fruits and vegetables. Women exchanges money with merchant for groceries.

Digital Delivery of Humanitarian Aid to Improve Food Security of Women in Afghanistan

Michael Callen
Miguel Fajardo-Steinhäuser
Michael Findley
Tarek Ghani
Researchers evaluated a program delivering digital aid payments on food security and mental well-being for vulnerable female-headed households in Afghanistan. Digital payments led to improved food security and mental well-being for beneficiaries. Digital delivery of aid was also cost-effective and...
a father and two young boys sit in a living room

Subsidized Housing to Change the Economic Outcomes and Social Integration of Syrian Refugees in Jordan

Samuel Leone
Edward Miguel
Sandra Rozo
Emma Smith
Researchers are conducting a randomized evaluation of a subsidized housing assistance program for refugees in Jordan to assess its impact on their economic outcomes, psychological well-being, long-term migration decisions, and social integration into their host community.
Girls and teacher standing up at a classroom in Mozambique

Gender Violence and School Achievement in Mozambique

In Mozambique, researchers are evaluating the GBV and schooling impacts of implementing a GBV curriculum targeted at students.
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A Mass Media Intervention to Reduce Violence Against Women in Rural Uganda

Jasper Cooper
Donald Green
Anna Wilke
In rural Uganda, researchers evaluated whether videos encouraging communities to speak out against violence against women (VAW) could change behavior, attitudes, and norms. Women exposed to the videos were more willing to report VAW to authorities. More broadly, women in villages where the videos...