Environmental performance evaluation of suppliers: A hybrid fuzzy multi-criteria decision approach |
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Authors: | G. Tuzkaya Ph.D. A. Ozgen Ph.D. D. Ozgen Ph.D. U. R. Tuzkaya Ph.D. |
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Affiliation: | 1. Department of Industrial Engineering, Yildiz Technical University, Yildiz, Istanbul, Turkey 2. Department of Industrial Engineering, Okan University, Akfirat, Tuzla, Istanbul, Turkey
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Abstract: | Increasing environmental problems enforce companies to be more environmental responsible. A company’s environmental performance is not only related to the company’s inner environmental efforts, but also it is affected by the suppliers’ environmental performance and image. As a stakeholder of the company, a supplier with bad environmental image affects badly the company’s environmental image. Also, raw materials and semi-finished products supplied from out of the company recourses- suppliers- affects the products environmental features such as life cycle, re-usability, re-manufacturability, hazardous substances, etc. Considering these direct and indirect effects, managers should also consider environmental performances of their suppliers in their supplier evaluation process. In this paper, a methodology for the evaluation of suppliers’ environmental performances is proposed. In this methodology, a hybrid Fuzzy-Analytic Network Process and Fuzzy-Preference Ranking Organization METHod for Enrichment Evaluations approach is utilized. Additionally, a numerical example is given to foster the better understanding of the methodology and the obtained results are analyzed with sensitivity analyses. |
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