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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

Afghanistan Targeting the Ultra-Poor Impact Evaluation

Guadalupe Bedoya
Aidan Coville
Mohammad Isaqzadeh
Jeremy Shapiro
In Afghanistan, researchers evaluated the impact of a Targeting the Ultra Poor program on poverty reduction. The cost-effective program generated large positive impacts for women participants across key outcomes: consumption, assets, psychological well-being, total time spent working, financial...

Do Robotic Calls from Credible Sources Influence Voter Turnout or Vote Choice?

James G. Gimpel
Daron R. Shaw
To test the impact of an automated phone call from a credible source on voters’ preferences and behavior, researchers delivered the message to random voters in two concurrent randomized evaluations. The call did not increase voter turnout or change voter preferences, suggesting that automated phone...

Self-Prophecy Effects and Voter Turnout in the United States

Anton Orlich
Jennifer K. Smith
Researchers contacted registered voters in a New England town by telephone and asked a portion of these voters to predict whether or not they would vote. This allowed researchers to use a randomized evaluation to measure the impact of making a prediction about future voting behavior on actual voting...

Graduating the Ultra-Poor in Ethiopia

Nathanael Goldberg
Researchers present results from six randomized control trials of an integrated approach to improve livelihoods among the very poor. The impact on the poor households lasted at least a year after all implementation ended.

Text Messages as Reminders for Antiretroviral Medication Adherence in Kenya

Researchers introduced text message reminders to evaluate their effect on Kenyan patients taking their antiretrovirals consistently and not skipping doses. Patients who received weekly text messages were more likely to take their medicine 90 percent of the time and were less likely to skip doses for...

The Role of Extrinsic and Intrinsic Motivations for Tax Compliance in Germany

Researchers partnered with a Protestant church district in metropolitan Bavaria, Germany, to conduct a field experiment to reveal taxpayers’ motivations to comply with a local church tax. Researchers found that simplifying the tax notification, highlighting the possibility of tax enforcement, and...

Student Incentive Structures in Malawi

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...