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Researchers conducted three randomized evaluations to measure the degree of competition among wholesale maize traders, understand the implications for social welfare, and test whether new traders could make a market more competitive. Researchers found that traders did not pass through much of a...

Researchers conducted an evaluation to test the impact of offering a high-amenity diagnostic consultation for cataracts at different prices on uptake of an underutilized service—cataract surgery—in Mexico. Lower prices for the high-amenity consultation increased exposure to amenities, which...

Researchers conducted a randomized evaluation in the Indian state of Tamil Nadu on the impact of adding an additional education-focused worker in early childhood development centers on students’ learning and health outcomes. The program increased the time spent on pre-school education, boosting...

In the United States, researchers evaluated the impact of the mandatory-participation bundled payment model for hospitals and explored which hospitals were incentivized to opt in to bundled payments after the model was later made voluntary. The mandatory-participation bundled payment program...

Researchers evaluated three interventions that addressed the large class sizes and heterogeneity in student preparation in the Kenyan school system. They found that hiring additional local contract teachers helped reduce classroom overcrowding and improved student learning outcomes. The biggest...

Researchers evaluated the academic impact of a “Cadillac” OST program in Washington, DC. Researchers found that the program increased students’ problem-solving and reading comprehension scores after two years.

Researchers offered two days of business training and assistance in identifying a medium-term financial goal to a random sample of women of different castes and religions in India. A random sub-sample of women were invited to attend the training with a friend. Women trained with a friend doubled...

In Colombia, researchers evaluated the impacts of a national computer distribution program (Computers for Education) on student test scores, time spent on learning, and attitudes towards education. The program had no effect on math or Spanish test scores, hours of study, or perceptions of school...