Search our database of 1095 randomized evaluations conducted by our affiliates in 91 countries. To browse summaries of key policy recommendations from a subset of these evaluations, visit the Policy Publications tab.

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Increasing the Electoral Participation of Immigrants: Experimental Evidence from France

Guillaume Liegey

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 Feedback on University Student Performance in Spain

Ghazala Azmat
Antonio Cabrales
Nagore Iriberri
University students are increasingly demanding more feedback on their performance relative to their peers, yet little is known on the impact of this feedback on student performance. Researchers shared information on students’ relative academic standing among university students in Spain to evaluate...

Assessing the Effectiveness of Alternative Text Messages to Improve Collection of Delinquent Fines in the United Kingdom

Laura Haynes
Rory Gallagher
Peter John
David J. Torgerson
The collection of delinquent fines is a massive public administrative challenge. In the United Kingdom for instance, unpaid court fines amounted to more than £600 million in 2011. Managing noncompliant accounts and dispatching bailiffs to collect fines in person is costly. Researchers used a...

How Malleable are Non-Cognitive Skills? Measuring the Impact of Increasing Grit in Turkey

Teodora Boneva
Seda Ertac
Researchers worked with public elementary schools in Istanbul to measure the effects of a “grit curriculum” on fourth-grade students’ perseverance, competitiveness, and test scores. Students who were exposed to the grit curriculum in 2013 earned higher scores on math exams, and the program also...

How Does Winning the Lottery Affect Labor Supply? Evidence from Sweden

David Cesarini
Erik Lindqvist
Robert Ostling
Researchers used data on lottery winners in Sweden to determine whether receiving an influx of cash affected the labor supply decisions of winners and their spouses. They found that lottery winners reduced their labor supply, suggesting that cash transfers can have an effect on labor market outcomes...

Teaching Students Perspective-taking to Mitigate Social Exclusion of Refugee Children in Turkey

Ceren Baysan
Mert Gumren
Elif Kubilay
Researchers partnered with the Ministry of Education in Turkey to conduct a randomized evaluation of Understanding Each Other, a program which aims to foster social cohesion through perspective-taking activities that encourage students to consider others’ perspectives. They found that the program...

Using Job Search Contracts to Help Job Seekers Return to Work in Germany

Barbara Hofmann
Gesine Stephan
Arne Uhlendorff
Researchers partnered with the German Federal Employment Agency to evaluate the impact of these contracts on job search behavior and employment outcomes. The contracts accelerated job finding when introduced early in the unemployment spell rather than later, but were only effective among less...

Encouraging Interregional Contact to Foster National Identity in Spain

Christopher Roth
Researchers evaluated the long-run effects of temporary contact between individuals from different regions during military service on interregional attitudes and national identity sentiments among former Spanish male conscripts. Overall, conscription outside of one’s region of origin led to positive...