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Can facilitating relationships between small- and medium-sized businesses help them grow? In Jiangxi Province, China, researchers conducted a randomized evaluation to study the impact of business relationships on firm performance. Monthly meetings among firms increased sales, profits, and other...

In partnership with the Government of Tamil Nadu, researchers evaluated the impact of incentivizing and monitoring walking on exercise and health. Incentives increased walking and improved health, as measured by risk factors for diabetes and by mental health.

In partnership with the Government of Indonesia, researchers conducted a randomized evaluation to compare the efficacy of vouchers versus in-kind transfers in reducing poverty and improving program delivery. The reform led to an increase in assistance received by eligible households, due to improved...