Variations in medical resource usage, both across and within geographical regions, have been widely documented. In this paper, we explore physician practice styles as a possible determinant of these variations. In particular, we exploit patient mobility between physicians to identify practice styles among general practitioners (GPs) in Austria. We use a large administrative data set containing detailed information on a battery of different health-care services and implement a model with additive patient and GP fixed effects that allows flexibly for systematic differences in patients' health states. We find that, although GPs explain only a small part of the overall variation in medical expenses, heterogeneities in spending patterns among GPs are substantial. Conditional on patient characteristics, we document a difference of € 751.47 per patient per year in total medical expenses (which amounts to roughly 45% of the sample mean) between high-and low-spending GPs.
KEYWORDShealth-care expenditures, physician behavior, practice styles, statistical decomposition
JEL CLASSIFICATION
I11; I12; C23This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.