Search our database of 1094 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.

Displaying 25-32 of 1094

Contraceptive Adoption, Fertility, and the Family in Zambia

Women who received private access to vouchers for contraceptives were more likely to take up and use contraception, compared to women whose husbands were involved in the voucher program.

Cooking Stoves, Indoor Air Pollution, and Respiratory Health in India

While researchers found a meaningful reduction in smoke inhalation in the first year after households received an improved stove, there was no effect over longer time horizons. The difference between the laboratory and field results is due to households’ revealed low valuation of the stoves...

Vocational Education Voucher Delivery and Labor Market Returns in Kenya

What are the impacts of vocational education on labor markets, migration patterns, and health and fertility outcomes in Kenya?

Leveraging Technology to Incentivize Student Effort in India

Sarojini Hirshleifer
Using a technology-based math curriculum, researchers evaluated the impact of different incentive types—rewarding continuous effort in the classroom versus rewarding test performance—on student learning. Results indicate that effort-based incentives can be a more effective and cost-effective way of...

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...

Changing Politicians’ Responsiveness through the Provision of Voter Information in Pakistan

Asad Liaqat
Uninformed elected leaders or voters can negatively affect political accountability, such as decision-making on what and how public services are delivered to citizens. The researcher partnered with the Pakistan Muslim League-Nawaz party in Lahore to evaluate the demand and responsiveness of local...

Encouraging Carpooling in Malaysia and Singapore

Ruimin He
Zoe Hitzig
Xin Wei Ngiam
Traffic is a significant concern in many rapidly developing and urbanizing countries, as it contributes to increased commute times, pollution, and fuel consumption. One solution to this challenge could be ride-sharing to reduce the number of cars on the road. In Malaysia and Singapore, researchers...

Peer Pressure and Educational Investments in the United States

To test whether students’ educational investments are affected by peer pressure, researchers offered high school students the opportunity to sign up for free access to an online SAT preparatory course. Some students were told that their decision to sign up would be public, and others were told that...