Operations Research Transactions ›› 2021, Vol. 25 ›› Issue (4): 58-68.doi: 10.15960/j.cnki.issn.1007-6093.2021.04.005

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A common-weights interval DEA approach for efficiency evaluation and its ranking method

Yixin LAN(), Bingyan WEN, Yingming WANG   

  1. Institute of Decision Science, School of Economics and Management, Fuzhou University, Fuzhou 350116, Fujian, China
  • Received:2019-09-18 Online:2021-12-15 Published:2021-12-11
  • Contact: Yixin LAN E-mail:lyx0302205@163.com

Abstract:

In order to solve the inconsistency of the evaluation scale in efficiency evaluation in interval data envelopment analysis, this paper proposes a common weight interval DEA model based on the target by maximizing the sum of the upper bound efficiency and the lower bound efficiency of all decision-making units (DMUs). Thus, our approach not only makes the interval efficiency of all DMUs being comparable, but also ensures that the upper bound efficiency and the lower bound efficiency are evaluated in the same scale. To rank the interval efficiencies completely a new approach which is based on the defined possibility degree formula in considering of the decision makers' interval preference is proposed. Finally, an example of measuring the industrial efficiencies in 11 coastal provinces of China is investigated to illustrate the effectiveness and the usefulness of our approaches.

Key words: data envelopment analysis, interval efficiency, common weights, possibility degree, decision maker's preference

CLC Number: