Burns L R, Bazzoli G J, Dynan L, Wholey D R
Wharton School, USA.
Health Aff (Millwood). 1997 Nov-Dec;16(6):204-18. doi: 10.1377/hlthaff.16.6.204.
This DataWatch evaluates four-stage models of market evolution developed initially by the University HealthSystem Consortium (UHC). Such models suggest that increasing health maintenance organization (HMO) penetration is linked with increases in hospital consolidation and vertical integration between physicians and hospitals. These claims are tested using national data for 1992-1995. Results suggest that such models accurately classify the markets of UHC member hospitals according to their levels of HMO penetration only. Moreover, they do not discern evolutionary stages of market development and may not be generalizable to the markets of non-UHC member hospitals. Researchers and policymakers should exercise caution in applying such models.
本数据观察评估了最初由大学卫生系统联盟（UHC）开发的市场演变四阶段模型。此类模型表明，健康维护组织（HMO）渗透率的提高与医院合并以及医生与医院之间的纵向整合增加有关。使用1992 - 1995年的全国数据对这些说法进行了检验。结果表明，此类模型仅根据UHC成员医院的HMO渗透率水平对其市场进行了准确分类。此外，它们无法识别市场发展的演变阶段，可能也不适用于非UHC成员医院的市场。研究人员和政策制定者在应用此类模型时应谨慎。
