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 65-72 of 1287
A woman holds a protest sign in Brazil

Politicians, Publicly-Released Audits of Corruption, and Electoral Outcomes in Brazil

Claudio Ferraz
Frederico Finan
Taking advantage of a federal anticorruption program that randomly assigned municipalities to be audited, the researchers compared the electoral outcomes for mayors in two randomly selected groups of municipalities: those that were audited before and those that were audited after the 2004 election...
University students from around the world working together

Reducing Racial Stereotypes by Encouraging Interaction in South Africa

Justine Burns
Lucia Corno
Eliana La Ferrara
Researchers studied the effects of a university policy in South Africa to promote racial integration, by randomly allocating incoming students to roommates of a different race. The policy reduced negative racial stereotypes among white students, improved attitudes and behaviors towards members of...
University students

The Impact of Feedback on University Student Performance in Spain

Ghazala Azmat
Manuel Bagues
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...
On the left, lights are installed in a classroom; on the right, students look at a screen at the front of the classroom delivering educational instruction.

School Electricity and Native Language Digital Media to Improve Student Learning in Tanzania

Hee Kwon (Samuel) Seo
Researchers conducted a randomized evaluation to test the impact of school electrification, delivered alongside mixed-language digital educational materials, on student exam scores and pass rates. They found that neither increased electricity access nor learning material in their native language...
Man feed ballot into ballot box while volunteers help voters in background

Radio Public Service Announcements and Voter Participation Among Native Americans in the United States

Donald Green
Eline A de Rooij
Can media campaigns increase voter turnout among those underrepresented in the electorate? Researchers randomly assigned areas covered by Native American radio programming to either receive or not receive targeted radio messaging encouraging listeners to vote in the 2008 and 2010 US elections. The...
J-PAL logo

Mobilizing Group Membership: The Impact of Personalization and Social Pressure Emails in the United States

James N. Druckman
Donald Green
This study evaluated the efficacy of three different types of emails in encouraging group membership: an impersonal email, a personalized email, and a personalized email that included an element of social pressure. Researchers found that membership increased most among recipients of the social...
Bureau de vote sign in French

Increasing the Electoral Participation of Immigrants: Experimental Evidence from France

Guillaume Liegey
Vincent Pons
Researchers conducted a randomized evaluation to test the impact of a general voter outreach effort on the political participation of immigrants relative to participation of non-immigrants. The canvassing treatment increased voter turnout of immigrants without affecting turnout of non-immigrants.

The Impact of Door-to-door Canvassing on Voter Support and Participation in Italy

Enrico Cantoni
Vincent Pons
Researchers tested whether discussions between candidates and voters can help bridge this gap and increase voter turnout, leveraging a volunteer and candidate canvassing campaign in the 2014 Italian municipal elections. While canvassing by volunteers increased voter turnout, canvassing by political...