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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

The Impact of Long-Range Weather Forecasts for Farmers’ in India

In India, researchers conducted a randomized evaluation to test the impacts of providing long-range, seasonal weather forecasts on farmers’ investments on and off the farm, and their well-being. They found that farmers who had access to the forecast updated their beliefs about the upcoming...

Mobile Phone-Based Extension Services and Agricultural Advice for Cotton Farmers in Gujarat, India

Researchers introduced a mobile phone-based agricultural extension service to evaluate its impact on knowledge and adoption of effective farming methods among cotton farmers in Gujarat, India. They found that the service was highly effective in nudging farmers to adopt a number of recommended...

Impact of School Leadership Training on Management Practices and Student Learning in India

Lee Crawfurd
In this randomized evaluation, researchers will test the impact of a large-scale leadership training program in India on improving school management practices and student learning. The intervention is ongoing, and results are forthcoming.

Changing Pedagogy to Improve Math Skills in Preschools in Peru

Mariana Alfonso
Emma Naslund-Hadley
In Peru, researchers evaluated the impact of a tailored inquiry- and problem-based learning approach on preschoolers’ performance in math. The program improved overall mathematics outcomes, which persisted for some content areas even one year after the program ended.

Social Pressure and Voter Turnout in the United States

Christopher Larimer
To study the effect of increased social pressure on turnout, researchers sent households one of four randomly selected mailings eleven days before Michigan’s August 2006 primary election. All four mailings increased turnout, but informing households of their neighbors’ past voting records raised...

Financial Trust Workshops to Encourage Savings Behaviors in Peru

Camila Navajas Ahumada
Researchers conducted a randomized evaluation in rural Peru to assess the impact of providing a workshop designed to foster trust in banks on participants’ levels of trust, financial literacy, and saving and account use patterns of cash transfer recipients. Overall, participants who were offered the...

Building Trust in Fertilizer Quality Among Farmers in Tanzania

Annemie Maertens
Researchers conducted an evaluation to test the impact of an information campaign about fertilizer quality on farmers’ beliefs and their purchase and use of fertilizer. The information campaign led farmers to change their beliefs about the quality of fertilizer available in local markets and to buy...