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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 Value of Communication for Mental Health in Ghana

Re searchers used a randomized evaluation to measure the impact of providing mobile calling credits to low-income adults on well-being outcomes in Ghana. Overall, the mobile credit intervention increased the ability for individuals to meet unexpected communication needs, particularly when delivered...

Harvesting Rainfall: Experimental Evidence from Cistern Deployment in Northeast Brazil

Distributing water cisterns in northeast Brazil led to fewer requests for private benefits from local politicians and fewer votes for incumbent mayors, who typically have more resources to engage in clientelism. Researchers and J-PAL's Latin America & Caribbean office are now working with the...

Mobile Phone Data Compared to Household Surveys to Evaluate the Impact of Cash Transfers in Togo

Emily Aiken
Suzanne Bellue
In Togo, researchers conducted a randomized evaluation to test the effect of cash grants on people's welfare and if using mobile phone data in impact evaluations yielded the same results as survey data. They found that the cash grant program increased food security, mental health, and self-perceived...

Impact of Soft versus Hard Skills Youth Entrepreneurship Training in Uganda

Dana R. Carney
Youth unemployment—an acute problem in Sub-Saharan Africa—can have long-term negative implications, both on individuals’ quality of life and on broader socio-economic development outcomes. A lack of necessary skills is often cited as contributing to high unemployment, and there is little evidence on...

Using Microcredit and Family Planning Services to Increase Contraceptive Use in Ethiopia

Jaikishan Desai
In Ethiopia, researchers tested whether linking microcredit and family planning services could increase contraceptive use more than either program in isolation. Neither the linked program nor the isolated programs had any detectable impact on contraceptive awareness, use, or intention to use.

Increasing Access to Infrastructure and Property Values through Urban Investment in Mexico

Researchers evaluated the impacts of a $68 million infrastructure investment program in Mexico on urban residents’ access to infrastructure, property values, private investment, moving rates, and community cohesion. The study found that access to infrastructure and property values improved in...

The Effect of School Choice on Academic Achievement in the United States

Julie Berry Cullen
Researchers used Chicago’s school choice program, which uses a random lottery to allocate slots in elementary schools, to evaluate how the opportunity to attend a higher-quality school impacts academic achievement. They found that lottery winners are more likely to attend higher-performing schools...