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Chinese Journal of Management Science

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Fuzzy Super-Efficiency DEA Model with Assurance Regions

ZHOU Zhong-bao1, LV Si-ya1, MA Chao-qun1, ZOU Lin1, LIU Wen-bin2   

  1. 1. School of Business Administration, Hunan University, Changsha 410082, China;
    2. Business School, University of KENT, KENT, CT2 7PE, England
  • Received:2010-06-14 Revised:2011-08-26 Online:2011-12-30 Published:2011-12-30

Abstract: Fuzzy DEA models is used to assess decision making units(DMUs)with fuzzy data.However previously proposed fuzzy DEA model may result in more than one efficient DMUs.In order to solve this problem,a fuzzy super-efficiency DEA-AR model is proposed.An algorithm to determine the lower and upper bounds of fuzzy efficiency scores at given α levels is proposed.The proposed model and solution approach are applied to evaluate the performance of banks in the end.

Key words: fuzzy DEA, super-efficiency, assurance regions, α-cut, bank efficiency

CLC Number: