Returns to scale in multiplicative models in data envelopment analysis

被引:15
作者
Zarepisheh, M. [1 ]
Khorram, E. [1 ]
Jahanshahloo, G. R. [2 ]
机构
[1] Amir Kabir Univ Technol, Fac Math & Comp Sci, Tehran 15914, Iran
[2] Teacher Training Univ, Fac Math Sci & Comp Engn, Tehran 15618, Iran
关键词
DEA; Returns to scale; Multiplicative models; DEA MODELS; EFFICIENCY; INVARIANT; UNITS;
D O I
10.1007/s10479-009-0537-0
中图分类号
C93 [管理学]; O22 [运筹学];
学科分类号
070105 ; 12 ; 1201 ; 1202 ; 120202 ;
摘要
One class of models introduced in DEA is called multiplicative models, in which, as shown by Banker and Maindiratta (Manag. Sci. 32:126-135, 1986), the piecewise linear frontiers usually employed in DEA are replaced by a frontier that is piecewise Cobb-Douglas(=log linear). Banker and Maindiratta (Manag. Sci. 32:126-135, 1986) introduced a model to identify the most productive scale size pattern, and Banker et al. (Eur. J. Oper. Res. 154:345-362, 2004) presented a two-stage method for the identification of returns to scale (RTS) in multiplicative models. In this paper it is shown that both the RTS situation and the MPSS pattern could be determined by a single model in one step. The new method is important in the computational point of view.
引用
收藏
页码:195 / 206
页数:12
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