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Parcourez les articles de presse, médias en ligne, blogs, podcasts et vidéos sur notre travail et la recherche de nos affiliés, ainsi que nos communiqués et lettres d'information, par année. Nous invitons les médias à nous contacter par courriel

Impact of Rainfall Insurance on Farmer Behavior in India

Xavier Giné
James Vickery
In India, researchers conducted a randomized evaluation to test how the provision of rainfall index insurance affected farmer production decisions, focusing on the decision to grow cash crops. They found that providing insurance led farmers to shift production towards higher-risk, higher-return cash...

The Impact of Teaching Teachers to Use Computer Assisted Learning on Student Math Performance in the United States

Researchers conducted two randomized evaluations to test the impact of coaching teachers on integrating CAL in their elementary and middle school mathematics instruction in two large, diverse school districts in the United States. The intervention led to improved math performance in one evaluation...

Donor Response to Aid Effectiveness in a Direct Mail Fundraising Experiment in the United States

Daniel H. Wood
Researchers examined whether individuals gave more after receiving information about a charity’s impact. They found that providing potential donors with rigorous evidence about a charity’s effectiveness increased the likelihood of giving to a major U.S. charity for large prior donors, but decreased...

The Impact of Outreach and Assistance from Navigators on Medicaid Renewals in the United States

Allison Espeseth
Researchers assessed the impact of outreach on Medicaid retention; outreach messages provided a reminder to renew as well as information about how to obtain free one-on-one assistance with renewal processes from health insurance navigators. Outreach using pre-recorded calls prevented denials due to...

Election Fraud and Government Legitimacy in Afghanistan

Researchers evaluated the impact of photographic monitoring technology on aggregation fraud and perceptions of government legitimacy during the 2010 parliamentary elections in Afghanistan. The announcement of a new monitoring technology reduced both theft of election materials and vote counts for...

Returns to Information and Temporary Discounts on Remittances for Guatemalan and Salvadoran Migrants in Washington DC

Kate Ambler
Diego Aycinena
Researchers evaluated two programs to explore factors that may influence the amount of remittances people send: a temporary discount on the transaction fee and the provision of information about the returns to education in their home country. While the information about education did not change...

The Impact of Employment on High-Risk Men in Liberia

Jeannie Annan
In Liberia, researchers tested the effect of an intensive agricultural training program that also provided agricultural supplies and psychosocial counseling on employment activities, income, and socio-political integration. Fourteen months after the program, participants spent more time working in...

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...