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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Improving local tax collection through technology in Ghana

Anders Jensen
David Lagakos
In partnership with Melchia Investments, a private Ghanaian technology company, researchers are conducting a pilot randomized evaluation to identify the effectiveness of a new tax collection technology in increasing property tax revenues for local governments.
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.
Man walking with phone in hand and with headphones on

Combating Misinformation using Fact-Checking via WhatsApp in South Africa

Jeremy Bowles
Kevin Croke
Horacio Larreguy
John Marshall
Researchers conducted a randomized evaluation to assess how fact-checks regularly sent to participants through WhatsApp can affect their ability to discern false information, as well as their beliefs and attitudes related to topics subject to viral misinformation, particularly Covid-19. Overall, the...
local council members sitting on floor talking

Increasing Women’s Local Political Participation Through Top-Down and Bottom-Up Training in Indonesia

Eitan Paul
A researcher evaluated the impact of empowerment training for female citizens and training for male council chairs on women's participation in neighborhood associations, known as rukun tetangga (RT) in Malang, East Java, Indonesia.
Group of people using phone in Pakistan

Using a Technology-Based Solution to Reduce Public Health Worker Absenteeism in Pakistan

Michael Callen
Saad Gulzar
Ali Hasanain
Muhammad Yasir Khan
Woman (in foreground) and man (in background) picking out produce at a grocery store.

The Impact of Unconditional Cash Transfers on Consumption and Household Balance Sheets in the United States

Alex Bartik
David E. Broockman
Patrick Krause
Sarah Miller
Elizabeth Rhodes
Eva Vivalt
Researchers conducted a randomized evaluation testing the impact of monthly cash transfers of $1,000 to low-income individuals in Texas and Illinois on household expenditures, debts and assets, and financial health. The study found that receiving the cash transfer increased spending by $310 per...
A science teacher helps two students

Training Teachers in Curiosity-Based Science Pedagogy in India

Ariel Gomez
Vinay Jha
Santosh Kumar
Sandeep Kumar
Nishith Prakash
Soham Sahoo
Group discussion about health insurance enrollment, healthcare, and health insurance quality with a group men from the village

Community Engagement’s Impact on Healthcare Utilization and Health Insurance Enrollment in Ghana

Stephen Duku
Christine Fenenga
Wendy Janssens
Edward Nketiah-Amponsah
Menno Pradhan
Researchers in Ghana evaluated the impact of community-led assessments on health insurance enrollment as well as healthcare and health insurance quality. The community engagement intervention improved the medical quality of healthcare, reduced community members’ chances of getting sick, and...