Montero De Juan, Francisco Javier2023-06-212023-06-211987Montero, F.J.: SOCIAL WELFARE FUNCTIONS IN A FUZZY ENVIRONMENT. Kybernetes. 16, 241-245 (1987). https://doi.org/10.1108/eb0057740368-492X10.1108/eb005774https://hdl.handle.net/20.500.14352/64971Fuzzy preference relations are considered and the concept of “fuzzy acyclity” is defined in order to measure their rationality. Such a concept is applied to study the properties of social welfare function in a fuzzy environment. In particular, the existence of non‐irrational aggregation rules is assured, in such a way that they can be used as a group decision aid.engjournal articlehttps//doi.org/10.1108/eb005774http://www.emeraldinsight.com/doi/abs/10.1108/eb005774?journalCode=kopen access519.8Group Decision MakingSocial WelfareInvestigación operativa (Matemáticas)1207 Investigación Operativa