Ozcan Y A, Bannick R R
Department of Health Administration, Medical College of Virginia Campus, Virginia Commonwealth University, Richmond 23298-0203.
J Med Syst. 1994 Apr;18(2):69-83. doi: 10.1007/BF00999453.
This study employs a simple cross sectional design using longitudinal data to explore the underlying factors associated with differences in hospital technical efficiency using data envelopment analysis (DEA) in the Department of Defense (DOD) sector across three service components, the Army, Air Force and Navy. The results suggest that the services do not differ significantly in hospital efficiency. Nor does hospital efficiency appear to differ over time. With respect to the efficient use of input resources, the services experienced a general decline in excessive usage of various inputs over the three years. Analysis of the returns to scale captures opportunities for planners of changing the relative mix of output to input slacks for increasing a hospital's efficiency. That is, policy makers would get more immediate "bang per buck" with emphasis on improving the efficiencies of hospitals with higher returns to scale than other hospitals. Findings also suggest a significant degree of comparability between the DEA measure and these measures often used to indicate efficiency.
本研究采用简单的横断面设计，利用纵向数据，通过数据包络分析（DEA），探讨国防部（DOD）部门中陆军、空军和海军三个军种医院技术效率差异的潜在因素。结果表明，各军种在医院效率方面没有显著差异。医院效率似乎也没有随时间变化。在投入资源的有效利用方面，各军种在三年中各类投入的过度使用普遍有所下降。规模收益分析为规划者提供了机会，可通过改变产出与投入松弛量的相对组合来提高医院效率。也就是说，政策制定者若着重提高规模收益较高医院的效率，将能获得更直接的“性价比”提升。研究结果还表明，DEA指标与这些常用于衡量效率的指标之间具有显著的可比性。
