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Browse news articles about J-PAL and our affiliated professors, and read our press releases and monthly global and research newsletters. For media inquiries, please email us.

A 20-year Follow-Up to an Early Childhood Stimulation Program in Jamaica

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

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

Gustavo Duncan
Benjamin Lessing
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.

Reducing Formalization Costs for Small Businesses in Colombia

Camila Navajas Ahumada
Marcela Meléndez
In the context of a recent government policy that reduced costs of formalization, researchers provided information on the formal entry process through workshops and personalized visits to determine the impacts of information on firms’ decision to formalize.

Slum Housing Upgrading in El Salvador, Mexico, and Uruguay

Ryan Cooper
Sebastian Martinez
Researchers measured the impact of improving the quality of slum housing on household wellbeing in El Salvador, Mexico, and Uruguay. Residents were selected to receive housing upgrades by lottery. Results show that slum upgrading significantly improved satisfaction with quality of life. In two...