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Efficiency analysis in multi-period system using DEA-R models
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M. Torkavannejad   , B. Daneshian , G. Tohidi , M. Maghbouli , F. Modarres Khiyabani |
| Department of Mathematics, Central Tehran Branch, Islamic Azad University, Tehran, Iran |
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Abstract: (941 Views) |
In measuring the efficiency of a set of units in a time span that covers several periods, the models based on the standard DEA consider the system as a black box and ignore the status of each unit in each period, which causes misleading results. On the other hand, Wei et al. [14] showed that standard DEA models not only underestimate the efficiency score of inefficient DMU, but also identify efficient DMU as inefficient. In order to solve the above deficiencies, this paper develops DEA-R models by applying MOLP techniques in the presence of multi-period data in such a way that the proposed method can evaluate the overall efficiency according to the periodic efficiency of all units. The proposed method is a general method for p-periodic system. To clarify the details of the proposed method, a comparison between the existing models and the proposed multi-period DEA-R model has been made to measure the efficiency of 22 Taiwanese commercial banks in the period of 2009-2011.
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| Keywords: Ratio Data Envelopment Analysis (DEA-R), Multi-Periodic Production Process, Overall Efficiency, Pseudo-Inefficiency, Multi-Objective Linear Programming (MOLP) |
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Full-Text [PDF 600 kb]
(664 Downloads)
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Type of Study: Research |
Subject:
Special
Received: 2022/05/8 | Accepted: 2022/09/16
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