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🚨 NEW PAPER in Journal of Political Economy🚨 When does evidence change policy? Stefano DellaVigna, Woojin Kim, and Elizabeth Linos examined 73 RCTs in 30 U.S. cities and found that cities are most likely to adopt a nudge intervention not when it has a large effect, but when it’s put into pre-existing communication. Overall, 78% of RCTs studied found positive effects, but the interventions were adopted only 27% of the time afterward. Surprisingly, the effect of the nudge in the RCT played no role in adoption: Nudges with both positive and null results were implemented at similar rates. By far, the most important factor of adoption is whether the nudge was implemented using pre-existing communication (67% adoption), as opposed to new communication (only 12% adoption). Our findings show the power of organizational inertia. Cities appear far more likely to adopt evidence when they don’t have to reinvent the wheel to do so. For practitioners and researchers, this can guide RCT design to focus efforts on the barriers to adoption. Read the paper here: https://lnkd.in/ehcT6q-M #evidence #government #research #governmentcomms #harvard #economics #communication #government #evidenceadoption

Bottlenecks for Evidence Adoption | Journal of Political Economy

Bottlenecks for Evidence Adoption | Journal of Political Economy

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