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:: Volume 1, Issue 1 (1-2021) ::
J. Math. and Appl. 2021, 1(1): 0-0 Back to browse issues page
A new model for evaluating cost efficiency using output slack variables in Data Envelopment Analysis
Asghar Darigh *1, Ali Jamshidi2
1- Department of Mathematics. Parand Branch, Islamic Azad University
2- Department of Mathematics, Islamic Azad University , Khorasgan Branch
Abstract:   (293 Views)

In previous methods to estimate cost efficiency using data envelopment analysis, a dominated decision-making unit (DMU) in the production possibility set(PPS) can be introduced as a cost efficiency unit. That is, a DMU may be cost-efficient, but not performance efficient. In this paper, at first, we provide a new definition for a cost-efficient unit, and then a model is presented in which the necessary condition for introducing a cost efficiency of DMU is its parato efficiency.

Keywords: Data Envelopment Analysis, Decision Making Unit, Production Possibility Set, Cost Efficiency, Slack variables.
Full-Text [PDF 373 kb]   (122 Downloads)    
Type of Study: Research | Subject: Operations research, mathematical programming
Received: 2021/03/24 | Accepted: 2021/01/1 | ePublished: 2021/01/1

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Darigh A, Jamshidi A. A new model for evaluating cost efficiency using output slack variables in Data Envelopment Analysis. J. Math. and Appl.. 2021; 1 (1)
URL: http://mathapp.ir/article-1-44-en.html

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Volume 1, Issue 1 (1-2021) Back to browse issues page
مجله ریاضیات و کاربردها Journal of Mathematics and Applications
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