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中国管理科学 ›› 2006, Vol. ›› Issue (6): 34-39.

• 论文 • 上一篇    下一篇

确定任意投入-产出组合规模弹性的DEA模型

蓝伯雄, 鲁国华   

  1. 清华大学经济管理学院, 北京, 100084
  • 收稿日期:2006-06-13 修回日期:2006-09-01 出版日期:2006-12-28 发布日期:2012-03-07

A DEA Model of Determining the Scale Elasticity in Any Input-Output Combination

LAN Bo-xiong, LU Guo-hua   

  1. School of Economics and Management, Tsinghua University, Beijing 100084, China
  • Received:2006-06-13 Revised:2006-09-01 Online:2006-12-28 Published:2012-03-07

摘要: 本文探讨数据包络分析(DEA)对规模收益的定量分析.过去的研究文献只涉及全输入组合对全输出组合的产出弹性.本文通过建立一般模型来计算任意输入组合对任意输出组合的产出弹性,从而可以确定在产出弹性中占主导地位的最佳投入组合.按照最佳投入组合来扩展规模可避免盲目投资和浪费资源,达到以最小投入获取最大产出的效用.

关键词: 数据包络分析, 产出弹性, 规模收益, 最佳投入组合

Abstract: This paper discusses the estimation of returns to scale using data envelopment analysis.The previous researches mainly focus on calculating the scale elasticity with the same proportion changes of entire output and input combination.By introducing a more general model,it is possible to calculate the scale elasticity of any input-output combination.Based on this model,the key input components,which are in the dominant position to determine scale elasticity,can be determined.The investment of expanding input resources can be used in a more efficient way if only the key input components are expanded.With the best investment combination,we may receive maximum output utility with minimum input.

Key words: DEA, scale elasticity, returns to scale, best investment combination

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