Volume 54, Number 6, November-December 2020
|Page(s)||1775 - 1791|
|Published online||16 September 2020|
A generalized fuzzy cost efficiency model
Department of Mathematics, Ardabil Branch, Islamic Azad University, Ardabil, Iran
2 Universite catholique de Louvain, Louvain School of Management and CORE, B-1348 Louvain-la-Neuve, Belgium
* Corresponding author: email@example.com
Accepted: 7 November 2019
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.
Mathematics Subject Classification: 90C70
Key words: Cost efficiency / sample decision-making unit / fuzzy numbers / α-cut
© EDP Sciences, ROADEF, SMAI 2020
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.