Search our database of 1,200+ summaries of randomized evaluations conducted by our affiliates in 98 countries. To browse key policy recommendations from a subset of these evaluations, visit the Policy Publications tab above.

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Improving Preschool Quality in Colombia

Alison Andrew
Orazio Attanasio
Raquel Bernal
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...
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Information and College Access in Canada

Ryan Dunn
Philip Oreopoulos

The Effect of School Choice on Student Outcomes in the United States

Julie Berry Cullen
Brian Jacob
Steven Levitt
Image of apartment buildings in New York City

Evaluating the Impact of Moving to Opportunity in the United States

Emma Adam
Raj Chetty
Greg Duncan
Lisa A. Gennetian
Nathaniel (Nathan) Hendren
Paul Hirschfield
Lawrence Katz
Ronald C. Kessler
Jeffrey Kling
Jeffrey Liebman
Stacy Tessler Lindau
Jens Ludwig
Thomas W. McDade
Joshua C. Pinkston
Lisa Sanbonmatsu
Robert C. Whitaker
Man working in a bakery near Barranquilla, Colombia.

Vocational Training for Disadvantaged Youth in Colombia

Orazio Attanasio
Arlen Guarín
Luis Omar Herrera-Prada
Adriana Kugler
Maurice Kugler
Carlos Medina
Costas Meghir
Juan Saavedra
A surveyor adds up the numbers in Nairobi, Kenya

The Role of Mobile Banking in Expanding Trade Credit and Business Development in Kenya

Tavneet Suri
Christopher Woodruff
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Evaluating an Exporting Scheme in Tunisia

Giacomo De Giorgi
Aminur Rahman
Eric Verhoogen
To promote export diversification, the Tunisian government is implementing a $22 million export matching-grant scheme, TASDIR+. TASDIR+ aims to increase exports and promote export diversification toward higher value-added exports and new markets. This study is using a randomized controlled trial to...

Nudges and Improved Communication to Encourage Medicaid Take-Up in Oregon

Katherine Baicker
Ginny Garcia-Alexander
Margarette (Maggie) A. Weller
Bill Wright