INTEGRATED FERMATEAN FUZZY SWARA-WASPAS METHODS FOR SUSTAINABLE SUPPLIER SELECTION

In today's business landscape, sustainable supplier selection has gained strategic significance, not only due to ethical responsibilities but also as a key factor in enhancing competitive advantage and managing long-term risks. Stakeholders such as consumers, investors, and regulatory agencies increasingly expect companies to adopt sustainability principles throughout their supply chains. Consequently, integrating environmental, social, and governance (ESG) criteria alongside traditional economic indicators has become essential. This study focuses on a large-scale retail organization’s supplier evaluation process by incorporating sustainability-oriented decision-making criteria. Building on a comprehensive literature review, existing evaluation criteria were revised and expanded to include ESG dimensions, forming a holistic framework of 18 sub-criteria across four primary categories: economic, environmental, social, and governance. To determine the importance of these criteria, the Fermatean Fuzzy SWARA method was applied, and supplier alternatives were prioritized using the Fermatean Fuzzy WASPAS technique. The findings provide actionable insights for practitioners seeking to enhance sustainable procurement practices.