Decision-making Methods in Green Vendor Selection with Blockchain Willingness under FL/AHP/FAHP

Abstract

With the worldwide recognition of environmental conservation, green production has emerged as a pivotal concern for nearly every manufacturer, and it will be determined for a long time to determine the sustainability of the manufacturer. Therefore, the performance evaluation system must be performed for green suppliers to determine the applicability of the supplier and the company. In a complex transaction and operating environment, suppliers choose to face information asymmetry usually. Fortunately, with the development of computer technology, blockchain technology enhances not only traceability and decentralization in supply chain management, but also boosts the flexibility of the supply chain. Since it is unclear whether the FAHP (Fuzzy Analytic Hierarchy Process) is better than the AHP (Analytic Hierarchy Process) in terms of the quality of decision solution, the method of a mathematical model is first adopted to determine the difference between AHP and FAHP. Then, taking H company's green supplier selection decision as the research object, determine five evaluation criteria, such as quality, delivery, blockchain willingness, costs, and environment protection by literature combing method. Based on FL (Fuzzy logic analysis method), AHP, and FAHP three methods to study the green supplier selection of H company. The result shows that different evaluation methods of FL, AHP, and FAHP have no significant effect on the comprehensive ranking of vendors, and AHP is particularly suitable for a company to select its alternative vendors.