Fuzzy multi-criteria decision-making: An entropy-based approach to assess tourism sustainability

In this article, we propose a method for ranking tourist destinations and evaluating their performances under a sustainability perspective: a fuzzy multiple criteria decision-making method is applied for determining sustainability performance values and ranking destinations accordingly. We select a set of sustainability evaluation criteria and use a fuzzy analytic hierarchy process to weight the selected criteria. We also optimize each evaluator's membership function support by means of a fuzzy entropy maximization criteria. A case study is illustrated and results are compared with two data envelopment analysis-based models. The simplicity of the proposed approach along with the easy readability of the results allow its direct applicability for all involved stakeholders.