DEA-R: ratio-based comparative efficiency model, its mathematical relation to DEA and its use in applications

被引：60
|
作者：
Despic, Ozren [1 ]
Despic, Mladen
Paradi, Joseph C.
机构：
[1] Aston Univ, Aston Business Sch, Birmingham B4 7ET, W Midlands, England
[2] Agricore United, Winnipeg, MB R3C 3A7, Canada
[3] Univ Toronto, Ctr Management Technol & Enterpreneurship, Toronto, ON, Canada
来源：
JOURNAL OF PRODUCTIVITY ANALYSIS | 2007年 / 28卷 / 1-2期
关键词：
DEA; efficiency; ratio analysis; weight restrictions;
D O I：
10.1007/s11123-007-0050-x
中图分类号：
F [经济];
学科分类号：
02 ;
摘要：
We propose a new mathematical model for efficiency analysis, which combines DEA methodology with an old idea-Ratio Analysis. Our model, called DEA-R, treats all possible ratios "output/input" as outputs within the standard DEA model. Although DEA and DEA-R generate different summary measures for efficiency, the two measures are comparable. Our mathematical and empirical comparisons establish the validity of DEA-R model in its own right. The key advantage of DEA-R over DEA is that it allows effective integration of the model with experts' opinions via flexible restrictive conditions on individual "output/input" pairs.
引用
收藏
页码：33 / 44
页数：12
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