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.

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Clinical Decision Support for Outpatient High-Cost Radiology Ordering in the United States

Bruce Darrow
Joseph Doyle
Laura Feeney
Amy Finkelstein
Joseph Kannry
Madhu Mazumdar
David Mendelson
Researchers are studying the impact of a clinical decision support system on the ordering of high-cost scans.
Women carrying food in Tanzania.

Incentivizing Safe Sex in Rural Tanzania

Ramadhani Abdul
Faraji Abilahi
Matthieu Alexandre
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...

Nudges and Improved Communication to Encourage Medicaid Take-Up in Oregon

Katherine Baicker
Ginny Garcia-Alexander
Margarette (Maggie) A. Weller
Bill Wright

The Effect of India's Total Sanitation Campaign on Defecation Behaviors and Child Health in Rural Madhya Pradesh, India

Benjamin Arnhold
Bertha Briceno
Sandipan Ganguly
Paul Gertler
John M. Colford Jr.
Sumeet R Patil
Alicia L. Salvatore
A health care worker takes a patient's blood pressure

The Impact of Family Planning Training on Private Sector Health Care Performance in Nigeria

Sikiru Baruwa
Minki Chatterji
Doug Johnson
Cynthia Kinnan
Modupe Toriola
Jorge Ugaz
Cycle driver

Increasing Caloric Intake to Improve Hours Worked, Earnings, and Physical and Cognitive Abilities in India

Low-income populations throughout the world often consume very few calories. At the time of this intervention in 2013, over 800 million people globally consumed fewer calories than were recommended to maintain a healthy weight. However, the impact of low caloric intake on economic productivity is...
Steps to purifying water with chlorine

Messaging Strategies to Promote Safe Water and Hygiene in Bangladesh

Raymond Guiteras
Kaniz Jannat
David Levine
Thomas Polley
Leanne Unicomb
Researchers tested whether sharing messages that appealed to negative emotions, like shame or disgust, increased households’ hand-washing behavior and willingness to pay for water chlorination in Dhaka, Bangladesh. Negative messaging had no impact on chlorination levels or willingness to pay, but...
Woman fills out paper work in Philippines

Credit with Health Insurance: Evidence from the Philippines

Xavier Giné
Dean Karlan
Jonathan Zinman
Researchers are examining the impact of offering health insurance through a microfinance institution on clients’ health behaviors and health outcomes, as well as on the institution’s profit, client retention, and default rates.