Search our database of 1,200+ summaries of randomized evaluations conducted by our affiliates in 97 countries. To browse key policy recommendations from a subset of these evaluations, visit the Policy Publications tab above.

Displaying 1049-1056 of 1267

Mobilizing Black Voters Using Direct Mail and Commercial Phone Banks in the United States

Donald Green
Photo: Shutterstock.com

Encouraging Interregional Contact to Foster National Identity in Spain

Manuel Bagues
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...

The Role of Extrinsic and Intrinsic Motivations for Tax Compliance in Germany

Diffusion of Agricultural Information within Social Networks: Evidence on Gender Inequalities from Mali

A man's hand types on WhatsApp on a mobile phone.

Countering Covid-19 Misinformation through WhatsApp in Zimbabwe

Jeremy Bowles
Horacio Larreguy
Shelley Liu
In this randomized evaluation in Zimbabwe, researchers studied how social media messages targeting misinformation can affect people’s beliefs about and responses toward Covid-19. The study found that these messages increased participants’ knowledge of Covid-19 information by 7 percentage points and...
juice vendor and group of female students

Offering Cash and In-Kind Transfers to Grow and Sustain Microenterprises in Sri Lanka

David McKenzie
Suresh de Mel
Christopher Woodruff
Researchers provided small one-time grants to microenterprises in Sri Lanka to measure the impact of the additional capital on business profits two and five years later. They found that cash and in-kind grants increased business profits for male owners in the short and long term, but did not lead to...
Three students around a computer in a classroom.

School-based Social and Emotional Learning on Student Behavior and Learning Outcomes in Chile

Clement de Chaisemartin
Researchers evaluated the impact of Chile’s national Skills For Life (SFL) program for disruptive students on their behavior and academic outcomes. Researchers found that the SFL program did not impact eligible students’ learning outcomes.
Students sit at a table and study for an exam.

Effects of Replicating Charter Schools in Boston, Massachusetts

Sarah Cohodes
Elizabeth Setren
Christopher Walters
Researchers studied a policy reform in Boston, Massachusetts, that allowed effective charter schools to replicate their school models at new locations. Results showed that charter schools reproduced their effectiveness at new campuses by following similar sets of standardized protocols...