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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Displaying 33-40 of 1286
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
Shelley Liu
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...
a class of adolescent girls take notes during class

Student Incentive Structures in Malawi

James Berry
Hyuncheol Kim
Hyuk Harry Son
Researchers conducted a randomized evaluation to test the impact of two different performance-based incentives on students’ test scores, motivation, and behavior in Malawi. They find that tournament-style incentives that rewarded the top performers among a large group lowered test scores and student...
mother holding twin babies

The Impact of Unconditional Cash Transfers to Pregnant Women and Lactating Mothers on Child Health in India

Karthik Muralidharan
Paul Niehaus
Sandip Sukhtankar
Jeffrey Weaver
In partnership with the Government of Jharkhand, researchers conducted a randomized evaluation to study the impact of unconditional, framed cash transfers to pregnant women and lactating mothers on child health.
J-PAL logo

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...
A women's microfinance group sitting

The Impact of Disbursing Microfinance Loans via Mobile Money Accounts in Uganda

Emma Riley
Researchers conducted a randomized evaluation to test disbursing microfinance loans through digital accounts on business outcomes in Uganda. Women who received their loan through a digital account experienced higher business capital and profits compared to those who received their loans via cash.
Woman sits with children.

The Impact of Mass Media and Family Planning Campaigns on Contraception Use in Burkina Faso

Rachel Glennerster
Joanna Murray
Victor Pouliquen
Researchers evaluated the impact impact of both general exposure to mass media and an intensive family planning campaign on contraception. Increasing exposure to general mass media reduced contraception use in this context. However, a high-quality family planning radio campaign offset the negative...
A stack of case files in a room full of files.

Impact of Customized Information and Mediation on Labor Court Settlement Rates in Mexico

Joyce Sadka
Christopher Woodruff
Researchers conducted two randomized evaluations to test the impacts of providing customized information on predicted case outcomes or conciliation services on labor court settlement rates in Mexico. Both interventions nearly doubled the immediate settlement rate, but only when the plaintiff was...