Negative Tests and the Efficiency of Medical Care: What Determines Heterogeneity in Imaging Behavior?
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We develop a model of the efficiency of medical testing based on rates of negative CT scans for pulmonary embolism. The model is estimated using a 20% sample of Medicare claims from 2000- 2009. We document enormous across-doctor heterogeneity in testing decisions conditional on patient risk and show
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美国国家经济研究局创建时间：
2014-03-01
