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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

Improving Preschool Quality in Colombia

Alison Andrew
Lina Cardona-Sosa
Sonya Krutikova
Marta Rubio-Codina
Researchers evaluated two approaches to improving the quality of Colombian preschools. Providing additional resources to preschools for materials and new staff did not benefit children’s development and, unintentionally, led teachers to reduce their involvement in classroom activities. However, the...

Graduating the Ultra-Poor in Peru

Bram Thuysbaert
Researchers evaluated a multi-faceted approach aimed at improving long term income of the ultra-poor in Peru. They found that the approach had long-lasting economic and self-employment impacts and that the long-run benefits, measured in terms of household expenditures, outweighed their up-front...

Suivi sur 20 ans d’un programme de stimulation de la petite enfance en Jamaïque

Susan M. Chang-Lopez
Sally Grantham-McGregor
James J. Heckman
Rodrigo Pinto
Christel Vermeersch
Susan Walker
Arianna Zanolini

Expanding Financial Access Via Credit Cards: Evidence from Mexico

Enrique Seira Bejarano
Sara G. Castellanos
Diego J. Jiménez Hernández
Researchers leveraged data from a randomized evaluation conducted by a large bank in Mexico to test the impact of varying credit card contract terms on loan default, card cancellation rates, and bank revenue for first-time formal sector borrowers. Variations in the interest rate and minimum payment...

Contesting Criminal Gang Governance in Medellin: The Impacts of Intensive Municipal Governance and Community Organization on Gang Control and Governing of Neighborhoods

In partnership with the City of Medellín, researchers randomly introduced a program that intensified government outreach to gang-controlled neighborhoods. The study found no evidence that the city’s intervention reduced gang rule.

Scripted Teacher Lessons on Student Learning in Chile

Researchers partnered with the Chilean Ministry of Education to evaluate the impact of pre-packaged classroom materials and standardized directions for teachers on teaching quality and student learning. The program improved student learning outcomes substantially, with equal benefits for both boys...