Applying inverse DEA and cone constraint to sensitivity analysis of DMUs with undesirable inputs and outputs

M. Eyni (), G. Tohidi and S. Mehrabeian
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M. Eyni: Payame Noor University
G. Tohidi: Islamic Azad University, Central Tehran Branch
S. Mehrabeian: Kharazmi University

Journal of the Operational Research Society, 2017, vol. 68, issue 1, 34-40

Abstract: Abstract In this paper, the inverse data envelopment analysis (DEA) with the preference of cone constraints will be discussed in a way that in the decision-making units, the undesirable inputs and outputs exist simultaneously. Supposing that the efficiency level does not change, if the unit under assessment increases the level of the desirable outputs and decreases the level of the undesirable outputs, how will it affect the amount of the desirable input level and the undesirable input level? To answer this question, the application of the inverse DEA with preference of cone constraints is suggested. The suggested approach, while maintaining the efficiency level, increases the level of its undesirable input and decreases the level of its desirable input by selection of strongly efficient solutions or some weakly efficient solutions of the multiple objective linear programming (MOLP) model. While maintaining the efficiency level, the suggested approach by selection of strongly efficient solution or some of the weakly efficient solutions of the MOLP model can increase the undesirable input level and decrease the desirable input level. Similarly, the suggested approach can be applied if the decision-making unit increases its undesirable input level and decreases the desirable input level so that the undesirable output level decreases and the desirable output level increases while maintaining the efficiency level. As an illustration, two numerical examples are rendered.

Keywords: DEA; inverse DEA; MOLP; undesirable data; cone constraints (search for similar items in EconPapers)
Date: 2017
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Citations: View citations in EconPapers (5)

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DOI: 10.1057/s41274-016-0004-7

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