Vogel W B, Miller M K
University of Florida, College of Health Related professions, Gainesville 32610, USA.
Health Care Financ Rev. 1995 Fall;17(1):69-83.
This article explores two neglected questions: (1) Does the relationship between hospital concentration and costs vary between urban and rural markets? and (2) Do hospital costs in non-metropolitan areas vary with rurality? Covariance model results using 1992 data reveal that: (1) Although metropolitan and urban markets exhibit a negative relationship between hospital average costs and market concentration, non-metropolitan and rural markets fail to exhibit any relationship between costs and concentration; and (2) among non-metropolitan hospitals, only hospitals located in single-hospital communities have lower costs than their counterparts in multiple-hospital communities, once other factors are held constant.
（1）医院集中度与成本之间的关系在城市和农村市场是否存在差异？以及（2）非大都市地区的医院成本是否随农村地区性而变化？使用1992年数据的协方差模型结果显示：（1）尽管大都市和城市市场中，医院平均成本与市场集中度呈负相关关系，但非大都市和农村市场中，成本与集中度之间未显示出任何关系；（2）在非大都市医院中，一旦其他因素保持不变，只有位于单医院社区的医院成本低于多医院社区的同类医院。
