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.

Displaying 49-56 of 1287

The Persuasive Effects of Televised Campaign Ads

James G. Gimpel
Daron R. Shaw
Early in the 2006 campaign for governor of Texas, the launch date and volume of television advertisements as well as the launch date of radio advertisements for the incumbent candidate were randomly assigned across media markets to evaluate the impact of the ads on public opinion. Results indicate...

Local Leadership and the Voluntary Provision of Public Goods in Bolivia

María P. Recalde
Researchers used a randomized evaluation to test how local leaders influence the voluntary provision of public goods. They solicited contributions for environmental education books, which all members of the community would be able to access, and varied whether leaders made public contributions. They...

Public Recognition and Fundraising in the United States

Researchers used two randomized evaluations to identify whether the motive for giving in public can be primarily linked to a desire for prestige (the “image” effect) or a hope that a public gift will influence others (the “signal” effect). They found that a desire to improve social image largely...

Community Driven Development in the Philippines

Amanda Beatty
Ariel BenYishay
Elisabeth King
Aniceto Orbeta
Community-based approaches to development, also called community-driven development (CDD), seek to empower local communities to identify and implement the projects they most need. Researchers evaluated the impact of a national community-driven development program in the Philippines on governance...

The Role of Protest Experience and Social Networks in Protest Movements in Hong Kong

Davide Cantoni
Noam Yuchtman
Y. Jane Zhang
In Hong Kong, researchers conducted a randomized evaluation to test the impact of indirectly incentivizing protest participation on sustained participation in a political movement and to identify the role social networks play in protest turnout. Indirectly incentivizing participants to attend a...

Reducing Parent-School Information Gaps and Improving Education Outcomes: Evidence from High-Frequency Text Messages

Samuel Berlinski
Mattias Busso
Claudia Martinez
Researchers conducted a randomized evaluation to test the impact of regular informational text messages to parents on children’s academic performance. The intervention improved math grades and attendance, although it did not impact negative classroom behavior on average. These effects were generally...

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...

Student Plagiarism and Rational Ignorance in the United States

Thomas S. Dee
By subjecting the papers to an electronic anti-plagiarism program, researchers found that the tutorial significantly reduced the likelihood of plagiarism, particularly among students with lower college entrance scores who had the highest rates of plagiarism. A follow-up survey suggests that the...