MODELING INTERREGIONAL PATIENT MOBILITY: THEORY AND EVIDENCE FROM SPATIALLY EXPLICIT DATA
构建理论模型解释患者选择全科医生的空间可达性因素，利用奥地利居民和医生分布的详细数据实证检验，发现空间可达性显著提升引力模型的解释力，并通过反事实模拟分析医生退出对医疗可及性和患者流动的异质性影响。
Abstract This article provides theory and evidence on the spatial determinants of regional patient flows. We develop a theoretical model that explains a patient's choice to consult a general practitioner by a measure of spatial accessibility. We empirically test this gravity‐type model using regional patient flows and detailed data on the spatial distribution of residents and physicians in Austria. Our measure of spatial accessibility is a crucial determinant of patient flows that substantially increases the explanatory power of regular gravity models. Counterfactual simulations show heterogeneous effects of exiting physicians on health‐care accessibility and patient mobility.