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Researchers used two randomized evaluations, an online survey and a field experiment, to test how personality traits affect responses to persuasive appeals to vote. They found that individuals with high levels of openness were most responsive to a range of appeals.

In this randomized evaluation in Zimbabwe, researchers studied how social media messages targeting misinformation can affect people’s beliefs about and responses toward Covid-19. The study found that these messages increased participants’ knowledge of Covid-19 information by 7 percentage points and...

Researchers conducted a randomized evaluation to test the impact of a deposit collection service on the amount of savings and the source of those savings. In a follow-up evaluation, researchers introduced design tweaks to test the impact of reducing collection costs on individuals’ savings behavior...

Researchers conducted a randomized evaluation to measure the impact of an information program on parental school choice and long-term student achievement. They found that the intervention shifted household school choices of those who were not enrolled before the intervention toward establishments...

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.