Improved efficiency measures through directional distance formulation of data envelopment analysis

被引：0
|
作者：
Ali Diabat
Udaya Shetty
T. P. M. Pakkala
机构：
[1] Masdar Institute of Science & Technology,Department of Engineering Systems & Management
[2] Government of Karnataka,Directorate of Economics and Statistics
[3] Mangalore University,Dept. PG Studies and Research in Statistics
[4] Mangalagangotri,undefined
来源：
Annals of Operations Research | 2015年 / 229卷
关键词：
Data envelopment analysis; Efficiency; Non-radial efficiency; Directional distance function;
D O I：
暂无
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学科分类号：
摘要：
This paper develops a model for an improved efficiency measure through directional distance formulation of data envelopment analysis. It deals with cases where positive and negative values co-exist as production factors. The developed model has properties such as scalar quantity for measuring efficiency and it identifies all sources of inefficiency. The measure is weakly monotonic; units and translation do not vary with respect to inputs and outputs. The proposed model, under some restrictions, reduces to basic Data Envelopment Analysis (DEA) models such as Charnes-Cooper-Rhodes (CCR), Banker-Charnes-Cooper (BCC), and a slack based model (SBM). In addition to the above, the proposed model includes the closest targets for a given inefficient unit to achieve efficiency with less effort. The proposed model is validated using a case study done on Information Technology firms operating in India.
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页码：325 / 346
页数：21
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