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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

Messaging Strategies to Promote Safe Water and Hygiene in Bangladesh

Kaniz Jannat
David Levine
Thomas Polley
Leanne Unicomb
Researchers tested whether sharing messages that appealed to negative emotions, like shame or disgust, increased households’ hand washing behavior and willingness to pay for water chlorination in Dhaka, Bangladesh. Negative messaging had no impact on chlorination levels or willingness to pay, but...

The Impact of Role Models and Technical Assistance on Microfirms in Chile

In partnership with Simón de Cirene, a Chilean non-profit organization, researchers evaluated the impact of providing role models and personalized assistance through various delivery methods on the business outcomes of micro-entrepreneurs. One year after the program ended, household income increased...

Video-Mediated Agricultural Extension to Increase Technology Adoption Among Farmers in Ethiopia

Gashaw Abate
Simrin Makhija
David J. Spielman
Researchers conducted a randomized evaluation to test the impact of a video-mediated extension approach on the uptake of technologies recommended by the Ethiopian Ministry of Agriculture. The video-mediated instruction increased uptake through improved access to extension and farmer knowledge but...

The Effectiveness of Encouraging Voter Participation by Inducing Feelings of Pride or Shame

Christopher Larimer
Researchers evaluated whether disclosure of past voting participation had a stronger impact on turnout when it reminded voters of instances in which they previously voted or of instances in which they failed to vote. The results suggest that mailings disclosing past voting behavior had strong...

Combating Vote-Selling in the Philippines

Allen Hicken
Stephen Leider
Vote-buying and vote-selling can obstruct the democratic process, yet they remain pervasive in many developing democracies. Researchers asked voters in the Philippines to make a simple, unenforceable promise not to accept money from politicians or to promise to vote according to their conscience...

Learning the Value of Education in the Dominican Republic

Lucas Coffman
Ryan Cooper
Daniel Morales
How important are the returns to education in determining schooling decisions? Do students have accurate information about these returns when they choose whether to continue schooling? In partnership with the Ministry of Education in the Dominican Republic, researchers are evaluating the impact of...

Personalizing Information to Improve Retirement Savings in Chile

Olga Fuentes Contreras
Julio Riutort
Felix Villatoro
Researchers partnered with Chile’s national pension authority to evaluate the effect of personalized versus generic information, delivered via self-service kiosks at government offices, on long-term savings. People who received personalized information increased their voluntary contributions in the...