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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 UNICEF's Communication for Development (C4D) Program in Ghana

In Ghana, researchers are evaluating the impact of a health communications program, which includes in-person, radio, and mobile phone interventions, on five key health behaviors.

Local Leadership and the Voluntary Provision of Public Goods in Bolivia

María P. Recalde
Researchers used a randomized evaluation to test how local leaders influence the voluntary provision of public goods. They solicited contributions for environmental education books, which all members of the community would be able to access, and varied whether leaders made public contributions. They...

The Oregon Health Insurance Experiment in the United States

Heidi Allen
Mira Bernstein
Jonathan Gruber
Joseph P. Newhouse
Eric Schneider
Jae Song
Bill Wright
Alan Zaslavsky
In a series of evaluations, researchers took advantage of a lottery that gave low-income uninsured adults the chance to apply for Medicaid in the United States to examine the impact of health insurance on these outcomes over the first two years.

The Impact of Delayed Wage Payments on Spending and Investment in Malawi

Lasse Brune
Qingxiao Li
Researchers conducted a randomized evaluation to test the impact of paying workers on a weekly basis or in one lump sum, as well as of receiving payments in contexts with greater temptation to spend, on their spending and investment decisions. Workers assigned to receive lump-sum wages were more...

Gazelles in Ghana: Identifying High-Growth Firms Through Panel Judges or Survey Instruments

Researchers conducted a business plan competition to test whether panel judges or questionnaires answered by firm owners could more accurately identify the fastest growing firms in Ghana. Both survey assessments and judging of business plans through panels selected firms with the potential for...

The Impact of Farmer-to-Farmer Training on Agricultural Productivity in Uganda

Jeremie Gignoux
Rick Kamugisha
Jane Kugonza
Margaret Najjingo Mangheni
Researchers evaluated the impact of a farmer-to-farmer training program on Ugandan farmers’ knowledge and use of improved dairy farming practices, as well as dairy production and revenues. Overall, the farmer-to-farmer training program improved farmers’ knowledge, productivity and revenues.