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Researchers conducted a randomized evaluation to measure the impact of offering subsidies to connect to the power grid on the demand for rural electrification in Kenya. The study finds that demand falls rapidly as connection price increases, and that supply costs are very high.

In India, where particulate matter pollution is a pressing issue, researchers are investigating whether increased transparency about industrial firms’ pollution emissions can improve the enforcement of environmental laws and reduce pollution.

Researchers examined results of a school admissions lottery to measure the impact of charter school education on students after six years. They found that offering a charter education resulted in improved test scores, higher college enrollment, a reduction in specific risky behaviors, and no...

The researcher used a randomised evaluation in Kenya and Uganda to study the impact of varying access to information about prices in buying and selling markets, and encouraged informal traders to enter new markets and take advantage of price differences.

Researchers tested whether an informative letter campaign could reduce inappropriate prescribing of controlled substances in Medicare Part D. Letters had no detectable effect on prescribing. In ongoing work, researchers are testing alternative versions of letters.

In Northern Ghana, researchers tested whether providing information could encourage mothers to talk more with their infants, thereby improving child development. Six to eight months after the intervention, mothers who received the information reported they were more likely to talk to their infants...