Purpose: The purpose of this paper is the development of a patent-based supplier portfolio that can be used to evaluate and select suppliers on account of their technological competencies. - Design/methodology/approach: In addition to traditional approaches, the authors develop a supplier...

This study presents an integrated multi-criteria decision-making (MCDM) and multi-objective optimization model for green supplier evaluation and optimal order allocation under uncertainty. The Fuzzy-Delphi method is used to refine supplier evaluation criteria, determining the weight of criteria,...