| 评价指标与DEA有效的关系 |
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| 引用本文： | 张俊容,郭耀煌. 评价指标与DEA有效的关系[J]. 系统管理学报, 2004, 13(6): 520-523 |
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| 作者姓名： | 张俊容 郭耀煌 |
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| 作者单位： | 1. 西南师范大学,数学与财经学院,重庆,400715
2. 西南交通大学,经济管理学院,成都,610031 |
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| 摘 要： | 为使DEA评价结果具有合理的区分度,现有经验是使输入、输出指标总数与决策单元数之间满足一定的数量关系。通过对比研究输入、输出指标数之和、之积与DEA有效单元数之间的关系,对上述经验的合理性进行了探讨,得到了一些重要结论。
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| 关 键 词： | 数据包络法 评价指标 相对效率 |
| 文章编号： | 1005-2542(2004)06-0520-04 |
| 修稿时间： | 2003-06-30 |
The Relationship between the Number of Factors and DEA Efficiency |
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| ZHANG Jun-rong,GUO Yao-huang. The Relationship between the Number of Factors and DEA Efficiency[J]. Systems Engineering Theory·Methodology·Applications, 2004, 13(6): 520-523 |
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| Authors: | ZHANG Jun-rong GUO Yao-huang |
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| Affiliation: | ZHANG Jun-rong~1,GUO Yao-huang~2 |
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| Abstract: | For improvimg DEA's discriminating power, the existing experience is that the number of DMUs should be at least two or three times the total number of inputs and outputs in any DEA application. This paper studies the validity of this experience through contrasting the total number's influence with the product's influence of inputs and outputs on DEA efficiency and gains some useful conclusions. |
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| Keywords: | data envelopment analysis factors relative efficiency |
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