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People-Powered Trauma Care

By Deborah Milstein

The chaos of Dhaka's roads inspired Jon Moussally, a physician in Massachusetts and instructor at the Harvard T.H. Chan School of Public Health, to cofound a volunteer-based emergency response system aimed at reducing death from road traffic injuries. A Field Report from the Fall 2019 issue.

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The Dragonfly Effect

By Jennifer Aaker & Andy Smith 10

Two veterans of consumer psychology, marketing, and entrepreneurship provide a guide to using social media for social change.

The Case for Causal AI

By Sema K. Sgaier, Vincent Huang & Grace Charles 3

Using artificial intelligence to predict behavior can lead to devastating policy mistakes. Health and development programs must learn to apply causal models that better explain why people behave the way they do to help identify the most effective levers for change.