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中国管理科学

中国管理科学 ›› 2010, Vol. 18 ›› Issue (4): 140-144.

• 论文 • 上一篇    下一篇

测量要素折扣对企业规模效率的贡献:基于DEA的研究

杨锋1, 夏琼1, 梁樑1, 吴华清2   

  1. 1. 中国科学技术大学管理学院, 安徽合肥230026;
    2. 合肥工业大学人文经济学院, 安徽合肥230009
  • 收稿日期:2009-10-27 修回日期:2010-07-10 出版日期:2010-08-30 发布日期:2010-08-30
  • 作者简介:杨锋(1977- ),男(汉族),湖北人,中国科学技术大学管理学院博士,研究方向:系统工程、管理科学.
  • 基金资助:

    国家自然科学基金创新研究群体科学基金(70821001);国家自然科学基金资助项目(70801056)

Measure the Contribution of Factor Discount to Scale Efficiency: A Study based on DEA Model

YANG Feng1, XIA Qiong1, LIANG Liang1, WU Hua-qing2   

  1. 1. School of Management, University of Science & Technology of China, Hefei 230026, China;
    2. School of Liberal Arts and Economics, Hefei University of Technology, Hefei 230009, China
  • Received:2009-10-27 Revised:2010-07-10 Online:2010-08-30 Published:2010-08-30

PDF (PC)

1062

被引次数

8

摘要： 规模效率分析是传统DEA领域的重要问题之一,但现有成果未曾对规模收益的影响因素及其影响力进行研究。本文引入可变权重DEA模型,将要素权重用分段线性函数表示,揭示了要素折扣是企业产生规模效率的一种原因,并测量了要素折扣对于规模效率的贡献。实例研究显示,不同企业及不同折扣率对于规模效率的贡献存在差异性。部分企业的规模效率随着折扣率增加而增加,而部分企业的规模效率则随着折扣率的增加而减少。

关键词: 数据包络分析, 规模收益, 可变权重, 效率评价

Abstract: Scale efficiency analysis is an important problem in traditional DEA research.However,the existing literatures have not studied the influencing factors and degrees to scale efficiency.This paperuses the weight-variable DEA model in which the input weight is defined by a piecewise linear function,discovers that the factor discount is one source of scale efficiency,and measures the contribution of factor discount to scale efficiency.Anumerical example is given to illustrate that there are differences on the contri-bution of factor discount to scale efficiency for different enterprises and different discountratios.For some enterprises the scale efficiency increases with increasing discountratio,but for some else the scale efficiency decreases.

Key words: data envelopment analysis, scale efficiency, diverse weight, efficiency evaluation

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