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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Efficiency and Rent Seeking in Local Government in India

Following the implementation of a policy mandating lower-caste representation in some local village councils in India, researchers evaluated how lower-caste presidents invested in and distributed goods. They found that disadvantaged lower-caste groups received more public goods in councils with an...

Effect of Media on Voting Behavior and Political Opinions in the United States

Daniel Bergan
This study measured the effect of receiving free subscriptions to either a liberal or conservative-leaning newspaper on voters’ political knowledge and opinions in the United States. Results demonstrated that neither subscription had an impact on voters' political knowledge, but that both...

Information and College Access in Canada

Ryan Dunn
Researchers examined whether a simple, inexpensive information campaign could change students’ knowledge and perceptions about post-secondary education. When exposed to an informational video, students who had been initially unsure about pursuing higher education reported expectations of higher...

The Impact of Private Tutoring Prices on Student Attendance and Performance in India

Priya Mukherjee
Researchers conducted a randomized evaluation to measure the demand for private tutoring services and estimate how pricing can influence enrollment in these services. Results suggest that higher prices reduced demand for private tutoring and also led to higher drop-out rates over time, with no...

Information Dissemination Campaign and Voters' Behavior in the 2009 Municipal Elections in Mexico

Alberto Chong
Ana De La O
Researchers randomly assigned voting precincts to a campaign spreading information on corruption and public expenditure one week before the 2009 municipal elections in Mexico. Providing incumbent corruption information not only decreased incumbent party support, but also decreased voter turnout and...

The Impact of Feedback on University Student Performance in Spain

Ghazala Azmat
Antonio Cabrales
Nagore Iriberri
Researchers shared information on students’ relative academic standing among university students in Spain to evaluate the impact of this information on student performance and satisfaction. Providing students with information on their relative standing led to a short-term decrease in academic...

Books or Laptops? The Cost-Effectiveness of Shifting from Printed to Digital Delivery of Educational Content in Honduras

Rosangela Bando
Dario Romero Fonseca
Researchers partnered with the Honduran government to evaluate the impact of replacing textbooks with laptops on student learning. Using laptops resulted in no change in learning outcomes, suggesting that laptops could be a cost-effective substitute to textbooks if they can replace enough textbooks.

Changing Pedagogy to Improve Math Skills in Preschools in Peru

Mariana Alfonso
Emma Naslund-Hadley
In Peru, researchers evaluated the impact of a tailored inquiry- and problem-based learning approach on preschoolers’ performance in math. The program improved overall mathematics outcomes, which persisted for some content areas even one year after the program ended.