A generalized fuzzy cost efficiency model
(2020) RAIRO - Operations Research — Vol. 54, n° 6, p. 1775-1791 (2020)
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- Abstract
- The concept of cost efficiency has become tremendously popular in data envelopment analysis (DEA) as it serves to assess a decision-making unit (DMU) in terms of producing minimum-cost outputs. A large variety of precise and imprecise models have been put forward to measure cost efficiency for the DMUs which have a role in constructing the production possibility set; yet, there’s not an extensive literature on the cost efficiency (CE) measurement for sample DMUs (SDMUs). In an effort to remedy the shortcomings of current models, herein is introduced a generalized cost efficiency model that is capable of operating in a fuzzy environment-involving different types of fuzzy numbers-while preserving the Farrell’s decomposition of cost efficiency. Moreover, to the best of our knowledge, the present paper is the first to measure cost efficiency by using vectors. Ultimately, a useful example is provided to confirm the applicability of the proposed methods.
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Aghayi, N., & Salehpour, S. (2020). A generalized fuzzy cost efficiency model. RAIRO - Operations Research, 54(6), 1775-1791. https://doi.org/10.1051/ro/2019102 (Original work published 2020)