Search our database of 1,200+ summaries of randomized evaluations conducted by our affiliates in 99 countries. To browse key policy recommendations from a subset of these evaluations, visit the Policy Publications tab above.

Displaying 41-48 of 264
A group of female passengers look at public health campaigns on phones while sitting on a train in Indonesia.

Celebrity Twitter Endorsement for an Immunization Public Health Campaign in Indonesia

Vivi Alatas
Arun Chandrasekhar
Markus Mobius
Ben Olken
Cindy Paladines
Researchers conducted a randomized evaluation on measuring the impact of celebrity Twitter endorsement for a child immunization campaign on the public’s opinion and behavior towards immunization. Celebrity endorsement increased Twitter engagement with the immunization campaign, primarily when...
Two men filling safe drinking water in buckets with two women watching

Improving the Targeting of Preventive Health Subsidies through Vouchers in Western Kenya

Pascaline Dupas
Vivian Hoffman
Michael Kremer
Alix Peterson Zwane
In Western Kenya, researchers compared three different approaches to subsidizing dilute chlorine solution to treat drinking water: a partial subsidy, a twelve month supply of free chlorine through monthly vouchers, and a twelve month supply of free chlorine hand-delivered. Safe water rates were much...
A health worker wearing white gloves doing a finger prick test for HIV

Incentives to Reduce Unsafe Sex in Rural Tanzania

Ramadhani Abdul
Faraji Abilahi
William Dow
Erick Gong
Zachary Isdahl
Julian Jamison
Boniphace Jullu
Suneeta Krishnan
Albert Majura
Carol A. Medlin
Edward Miguel
Jeanne Moncada
Sally Mtenga
Mathew Alexander Mwanyangala
Rose Nathan
Laura Packel
Julius Schachter
Kizito Shirima
Damien de Walque
In Tanzania, researchers examined whether making cash payments conditional on testing negative for sexually transmitted infections (STIs) can improve safe sex practices among young adults. They found that offering cash incentives of US$20 significantly reduced STI rates after one year, although...
Indonesian woman speaking with insurance agent at BPJS Kesehatan in Indonesia

Enrolling Informal Sector Workers in National Health Insurance in Indonesia

Abhijit Banerjee
Amy Finkelstein
Rema Hanna
Ben Olken
Arianna Ornaghi
Sudarno Sumarto
A key challenge to achieving universal health coverage is that non-poor informal workers are difficult to enroll and retain in government health insurance programs. Researchers conducted a randomized evaluation to test the impact of various programs, including subsidies, registration assistance and...
A health worker in Zambia wearing magenta scrubs and blue medical mask checks patient's blood pressure

The Impact of Offering Awards on Health Worker Learning in Zambia

Researchers in Zambia introduced different kinds of awards and information on performance rankings into a year-long training for community health workers to evaluate their impact on how much trainees learned. They found that awards focused on offering recognition and improving trainees’ status and...
Two male bureaucrats in collard shirts are filling out paperwork about performance

Motivating Bureaucrats through Performance Recognition in Nigeria

Varun Gauri
Julian Jamison
Nina Mazar
Owen Ozier
Researchers introduced a performance recognition system for employees to improve record keeping in clinics in Ekiti and Niger, Nigeria. They found that the performance recognition improved record keeping in Ekiti but not in Niger. Researchers suggested that important institutional, managerial and...
A young Chinese girl sits at desk with pen in mouth and educational workbooks in front of her

The Impact of Health Education on Behavior and Nutrition in China

Renfu Luo
Alexis Medina
Grant Miller
Scott Rozelle
Yaojiang Shi
Linxiu Zhang
Huiping Zhang
Health education campaigns are often seen as a way to promote healthy behaviors and encourage the adoption of inexpensive life-saving and life-improving technologies. Researchers evaluated three health education campaigns for parents that aimed to reduce iron-deficiency anemia among primary school...
Image of apartment buildings in New York City

Evaluating the Impact of Moving to Opportunity in the United States

Emma Adam
Raj Chetty
Greg Duncan
Lisa A. Gennetian
Nathaniel (Nathan) Hendren
Paul Hirschfield
Lawrence Katz
Ronald C. Kessler
Jeffrey Kling
Jeffrey Liebman
Stacy Tessler Lindau
Jens Ludwig
Thomas W. McDade
Joshua C. Pinkston
Lisa Sanbonmatsu
Robert C. Whitaker
Helping families with young children living in high-poverty housing projects to move to lower-poverty neighborhoods improves the later-life outcomes for the children and may reduce the intergenerational persistence of poverty.