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Researchers studied the impact of physician training on the cost and quality of care in a large hospital that randomly allocated patients to teams of physicians from residency programs affiliated with one of two different medical schools. Costs for patients treated by physicians affiliated with the...

Across six randomized evaluations, researchers studied the impact of low-cost, low-touch informational interventions, or “nudges,” on take-up of the federal and state Earned Income Tax Credit (EITC) in California. None of the interventions had an impact on EITC take-up, suggesting that information...

Businesses may be slow to adopt a new technology even when it offers clear benefits. Researchers introduced a new fabric cutting technology to a randomly selected group of soccer ball manufacturers in Pakistan, but very few firms adopted it. They hypothesized that the most likely explanation for low...

In low- to middle-income countries around the world, nearly one billion people lived in urban informal settlements as of 2018. Rapid urbanization in most large African cities has led to both more people and a higher proportion of people living in informal settlements over time. Researchers conducted...

Researchers studied the impact of private school vouchers on the altruism, or selfless concern for others, of children and their parents. Voucher recipients demonstrated more altruism towards charitable organizations, but not towards their peers.

Researchers investigated the impact of a new product that allowed Kenyans to invest small amounts of money in low-risk, high-return infrastructure bonds using their mobile phones. However, lack of awareness and low product take-up, triggered by logistical issues during implementation and a pending...

In Indonesia and Tanzania, researchers conducted a mixed methods randomized evaluation of a transparency and accountability program designed to improve maternal and newborn health (MNH) outcomes, known as the Transparency for Development (T4D) program. While the T4D program drew strong participation...