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PNAS: Randomized trial shows healthcare payment reform has equal-sized spillover effects on patients not targeted by reform

Abstract:  Changes in the way health insurers pay healthcare providers may not only directly affect the insurer's patients but may also affect patients covered by other insurers. We provide evidence of such spillovers in the context of a nationwide Medicare bundled payment reform that was implemented in some areas of the country but not in others, via random assignment. We estimate that ...
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