A fuzzy multiple criteria decision making model for airline competitiveness evaluation

This article presents a new fuzzy multiple criteria decision making model for the evaluation of airline competitiveness over a period. The evaluation problem is formulated as a fuzzy multiple criteria decision making problem and solved by our strength-weakness based approach. For finding out the strength and weakness of an airline over another airline, we present a preference function based on the extended fuzzy preference relation. The strength and weakness matrices are then calculated based on the preference function. We propose a method to aggregate the weights of criteria, strength matrix and weakness matrix into the strength indices and the weakness indices of airlines, by which each airline can identify its own strength and weakness. The strength and weakness indices can be further integrated into an overall performance indices, by which airlines can identify their competitiveness ranking.