Comparative Study of Different MCDA-Based Approaches in Sustainable Supplier Selection Problem

摘要

One of the crucial aspects of maintaining the business continuity of a company is the process of sustainable supplier selection. If the suppliers are chosen improperly, a slow-down or even a complete suspension of the operations within a company can occur. In this paper, a new unique approach is presented in which the classical MCDA paradigm is extended with aspects of temporal evaluation. In practical terms, three popular MCDA methods are used to evaluate suppliers based on data obtained from five temporal aggregation strategies. The combination of three MCDA methods (namely AHP, TOPSIS and COMET) allows to obtain a rank-reversal-free solution with a reference model and well defined hierarchical structure of the problem. Moreover, the rankings obtained from the MCDA methods are then aggregated to provide the Decision Maker a single ranking of suppliers. The effect of each temporal aggregation strategy on the eventual selection of the winning supplier is also studied.