A DEA Model for Systematic Screening of Sustainable Suppliers with Uncertainty

Abstract

Suppliers play a vital role to create a sustainable and environment friendly supply chain of manufacturers. The manufacturer must have a systematic screening of available sustainable suppliers along various dimensions including their environmental sustainability dimension so that they can make the right outsourcing decision. It was observed that there are quantitative, qualitative factors and vagueness of experts' opinions involved in the screening, so a modified integrated model of Data Envelopment Analysis (DEA) integrated with the concepts of fuzzy logic is proposed which can handle the above factors for studying, analyzing, comparing and screening the sustainable suppliers. To describe the salient features of the proposed model a numerical illustration as case study is presented.