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.

Displaying 1-8 of 1267
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Debiasing Law Enforcement Officers

Girija Borker
Nishith Prakash
Maria Micaela Sviatschi
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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
Young man and older man look at drawings taped to wall

Facilitating Youth's Access to Apprenticeships in Tulle (France), and Encouraging Youth to Complete Them

Thomas Le Barbanchon
Bruno Crépon
Marc Gurgand
Roland Rathelot
Philippe Zamora
Researchers evaluated the effect of personalized counseling to French youth on finding an apprenticeship, completing it, and securing longer-term employment. Personalized counseling encouraged more youth to start a pre-apprenticeship training program, but did not improve take-up into apprenticeship...

Promoting Handwashing Behavior in Peru: The Effects of Large-Scale Community and School-Level Interventions

Nicolas Ajzenman
Sebastian Galiani
Paul Gertler
Alexandra Orsola-Vidal
Researchers evaluated the impact of a large-scale handwashing intervention in Peru that introduced an innovative mix of mass media campaigns along with more intensive community activities, including educational sessions for caregivers and a handwashing curriculum in some schools. The program was...