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Researchers evaluated the impact of direct mail and phone calls on the turnout of Black voters in ten different states. Neither mailings nor phone calls significantly impacted voter turnout, perhaps due to the large volume of political messaging that voters had to navigate.

In slums near Nairobi, Kenya, researchers are testing how subsidizing the cost of connecting to the sewer system and providing information about the health benefits of improved sanitation affects the number of landlords who connect to the sewer system.

In Uganda, researchers introduced a mentoring program to evaluate the impact of interactions between young, successful vocational training graduates and current vocational training students on their employment status and earnings. Students who received mentoring were more likely to be working three...

Researchers evaluated a cap-and-trade program in the United States to determine if the initial allocation of permits among firms affected how much firms decided to pollute. Evidence was consistent with, but not proof of, the economic theory that firms make decisions to reduce emissions based on...

Researchers are conducting a randomized evaluation to test the impact of a package of interventions with the aim of improving the quality of nurseries, enhancing nutrition, and empowering women to address poverty and promote early childhood development in Egypt.

Researchers introduced a digital payment system in Senegal's informal taxi sector to investigate how digital payments affected drivers' cash-handling costs and how allowing employers different levels of access to drivers' transactions affected driver effort, employment contracts, and the use of...