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 65-72 of 1267
Watermelons at a local market in China

Laser-Branding Technologies to Increase the Quality of Watermelons in Chinese Markets

Researchers conducted a randomized evaluation to test the impact of different types of labels to signal product quality on sellers’ ability to develop a reputation for consistently selling high-quality watermelons in China. The more expensive laser-cut label influenced sellers to provide higher...
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Soft Skills Training on Enterprise and Employment Growth in Tanzania

In this study, researchers explored the impact of a soft-skills training program on youth employment.
Community members attend a community accountability meeting with their local political leader to discuss health care quality in the Ankole Region of Uganda.

Governance Interventions to Improve Public Health Delivery in Uganda

Joshua Greenberg
The researcher conducted a pilot randomized evaluation to test the feasibility of a regular community accountability meeting program and a politician health leadership program, as well as the feasibility of associated data collection activities. Both interventions realized considerable stakeholder...
Turkish citizens gather at night in Taksim square with Turkish flags

The Impact of Information Campaigns on Voter Polarization in Turkey

Ceren Baysan
The researcher evaluated an opposition party’s door-to-door information campaign regarding increases in executive power or executive performance to determine the impact of widespread, non-state-authorized information on voter partisanship. In neighborhoods with majority opposition supporters...
A female nurse examines a female patient at a clinic in India.

The Impacts of Mental Health Treatment on Productivity in India

Manuela Angelucci
Daniel Bennett
Researchers evaluated the impact of providing depression treatment and economic assistance on mental health and economic behavior in peri-urban communities near Bangalore, India. Treatment reduced depression severity, a benefit that persisted when paired with light-touch livelihoods assistance, but...
Girls receiving SMS messages about precautionary health measures.

The Impact of Peer Messaging to Combat the Spread of Covid-19 in Zambia

Researchers conducted a randomized evaluation in Zambia to test the impact of a peer-based information campaign, consisting of SMS messages and small cash incentives, on people’s adherence to Covid-19 health protocols. Participants forwarded public health SMSs when they were encouraged to do so, yet...
Informal Settlement in Kenya

Positive Psychology for Psychological Well-Being and Decision-Making in Kenya

Victoria Baranov
Johannes Haushofer
Chaning Jang
In Kenya, researchers conducted a randomized evaluation to test the impact of a light-touch positive psychology intervention on psychological well-being and economic decision-making for low-income populations. The intervention had a positive impact on gratitude; however, it had no significant...
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...