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To test the impact of an automated phone call from a credible source on voters’ preferences and behavior, researchers delivered the message to random voters in two concurrent randomized evaluations. The call did not increase voter turnout or change voter preferences, suggesting that automated phone...

Researchers evaluated the impact of teaching socio-emotional skills to schoolchildren on their emotional well-being, learning, life satisfaction, and long-run labor outcomes.

Researchers conducted a randomized evaluation in Uganda to test the impact of a mobile phone-based marketplace for agricultural commodities on local market prices, entry of traders, farmer revenue, and trader profits. Overall, the platform increased trade flows and decreased price variation across...

Researchers evaluated two types of reward contracts—one that rewarded providers for increased use of inputs and one that rewarded providers for improved health outputs—among rural obstetric care providers in India. They found that both contracts reduced post-partum hemorrhage by 20-23 percent.

Researchers studied Zambia's Teaching at the Right Level program, delivered by government teachers nationwide, using a pre-registered cluster-randomized trial and an event study covering 4.4 million exam scores. After two years, the program improved children’s foundational literacy and numeracy...

Researchers evaluated the effect of social pressure to share income on farmers’ spending decisions by varying whether income from large cash prizes was received in a public or private setting. Receiving prize money in a public setting induced individuals to spend one-third more of their money in the...

Researchers used a randomized evaluation to measure the impact of a government program that gave groups of young people US$400 per person in return for a proposal to start a skilled trade. Recipients invested the cash and significantly increased their incomes for several years. However, nine years...

Researchers evaluated the impact of a social media messaging campaign on mental health help-seeking behavior among Ukrainian refugees in Germany. Social media was an effective means to reach refugees with mental health needs, and videos featuring a relatable patient led to more hotline calls than...