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Researchers conducted a randomized evaluation to test whether the position of a trained lead farmer within a community’s social network affected other farmers’ decisions to adopt a new agricultural technology in Malawi. Results suggest that having access to multiple lead farmers/central individuals...

In Sierra Leone, researchers are testing whether price subsidies and agricultural extension training can reduce the costs of early adoption, and whether using the improved seed varieties will ultimately benefit poor farmers.

In western Uganda, researchers conducted a series of randomized evaluations that assessed the impact of introducing a combination of post-harvest services, training on agricultural best practices, and access to a market for high-quality maize on farmers’ productivity and profits. Researchers found...

A common strategy for increasing school attendance is to offer cash rewards or other incentives to households, usually to the parents, when their children attend or perform well in school. In Gurgaon, India, researchers tested whether giving education incentives to parents or children influenced the...

Researchers analyzed the impact of a program that provided students in California with a home computer on students’ academic achievement. The program had no effect (either positive or negative) on any educational outcome, including grades, standardized test scores, and attendance.

In Nicaragua, researchers compared the cognitive and health outcomes of boys whose families received conditional cash transfers in the first three years of their lives to those who received the transfers later. Exposing boys to the program during the first 1,000 days of life led to better cognitive...

This study evaluated the efficacy of three different types of emails in encouraging group membership: an impersonal email, a personalized email, and a personalized email that included an element of social pressure. Researchers found that membership increased most among recipients of the social...