Medicare Part D enrollees face a complicated decision problem: they must dynamically choose prescription drug consumption in each period given difficult- to-find prices and a non-linear budget set. We use Medicare Part D claims data from 2006-2009 to estimate a flexible model of consumption that...

We explore choice inconsistency over time within the Medicare Part D Prescription Drug Program. Using the full universe of Part D claims data, we revisit our earlier work on partial data to replicate our results showing large "foregone savings" among Part D enrollees. We also document that this...

We develop a model of the efficiency of medical testing based on the frequency of negative CT scans for pulmonary embolism. The model is estimated using a 20% sample of Medicare claims from 2000-2009. We document enormous heterogeneity in testing conditional on patient population. Less...