The People Lab

Bottlenecks for Evidence Adoption

Journal of Political Economy

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  • Stefano Dellavigna staff headshot Woojin Kim staff headshot Elizabeth Linos faculty headshot
    Stefano DellaVigna, Woojin Kim, Elizabeth Linos
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Research summary

Against a backdrop of growing interest in evidence-based policymaking, governments increasingly use randomized controlled trials (RCTs) to evaluate “what works.” Yet, relatively little is known about how often – or why – evidence from such experiments is adopted at scale. This study was conducted on 30 U.S. cities that ran RCTs to better understand how governments incorporate results into policymaking.

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