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In Nigeria, researchers worked with a financial service provider to evaluate the impact of digital loans on welfare. Being approved for the loans increased subjective well-being after three months, for applicants who normally would have been denied.

In India, researchers measured the impact of providing vouchers to attend private schools on student learning. Students who won vouchers had test scores that were 0.13 standard deviations higher across all subjects.

Researchers evaluated the impact of different approaches designed to increase latrine coverage on actual latrine coverage, investment in hygienic latrines, and the prevalence of open defecation.