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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...

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...

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...

Researchers evaluated the role of reciprocity in increasing voter turnout through voter mobilization calls by varying whether an initial phone call included a plausible sign of good will by the campaign—an offer to follow up reminding them to vote.

Researchers evaluated the impact of making voter registration easier on voter participation by providing information about voter registration and home registration visits. Overall, the results suggest that information and visits can encourage greater participation, particularly among groups that...

Researchers studied Zambia's Teaching at the Right Level program, delivered by government teachers nationwide, using a pre-registered cluster-randomized trial and an event study covering 4.4 million exam scores. After two years, the program improved children’s foundational literacy and numeracy...