A Framework for a Sustainable Sourcing: A Flexible Cross Efficiency Evaluation in Fuzzy DEA

Abstract

Nowadays, customer attitudes focus on sustainability of the products/services regarding environmental, social and economic aspects. In this study, we propose a product-based framework for sustainable supplier sourcing in SCM, which considers sustainability, operational and organizational criteria in terms of the outsourced product. We develop a flexible cross efficiency evaluation DEA for effectively discriminating suppliers along with using fuzzy sets to tackle the vagueness information.