Sustainable aviation fuel supplier evaluation for airlines through LOPCOW and MARCOS approaches with interval-valued fuzzy neutrosophic information

• Published in: Journal of air transport management 2025-03, Vol.123, p.102705, Article 102705
• Main Authors: Ecer, Fatih, Tanrıverdi, Gökhan, Yaşar, Mehmet, Görçün, Ömer Faruk
• Format: Article
• Language: English
• Subjects: Airline industry; Decarbonization; Interval-valued fuzzy neutrosophic numbers; LOPCOW; Sustainable aviation fuel; Sustainable supplier selection
• ISSN: 0969-6997
• DOI: 10.1016/j.jairtraman.2024.102705

In line with the 2050 net zero emission target, sustainable aviation fuel (SAF) is recognized as one of the most effective decarbonization solutions for the aviation industry, which has been identified among the critical areas for mitigating climate change. However, although sustainability issues and decarbonization have attracted scholars' attention in various terms for the airline industry, we identified some significant theoretical and managerial gaps as follows: (i) the number of studies evaluating sustainable suppliers by airlines via multi-criteria decision-making (MCDM) approaches are very few, (ii) the extant literature has no paper addressing airlines' SAF supplier selection process, and (iii) no widely established criteria set in the literature to evaluate the SAF suppliers for airlines. We propose a novel model for the decision-making process of airlines' sustainable SAF supplier selection, including 39 criteria from 5 aspects considering the triple bottom of sustainability. The proposed model involves the combination of the logarithmic percentage change-driven objective weighting (LOPCOW) and measurement alternatives and ranking according to the compromise solution (MARCOS) approaches' extended forms based on the interval-valued fuzzy neutrosophic numbers (IVFNN). A comprehensive sensitivity and comparison control is further exploited to display the developed framework's robustness and practicality. Our results suggest that airlines prioritize the green initiatives of SAF suppliers over the economic aspect in the process of sustainable SAF supplier selection. We provide some managerial and policy insights for practitioners and policy-makers in the airline industry and some directions for further research. [Display omitted] •The paper suggests a frame to address the sustainable SAF supplier selection.•The frame consisting of the IVFNN-LOPCOW method to calculate the criteria weights.•The IVFNN-MARCOS technique was applied to determine the preference of the options.•The validity of the presented decision tool is confirmed through a real case.•Green initiatives of the suppliers are critical for airlines when negotiating.