RT Journal Article T1 Social welfare functions in a fuzzy environment A1 Montero De Juan, Francisco Javier AB Fuzzy 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. PB Emerald Group Publishing Limited SN 0368-492X YR 1987 FD 1987 LK https://hdl.handle.net/20.500.14352/64971 UL https://hdl.handle.net/20.500.14352/64971 LA eng NO Montero, F.J.: SOCIAL WELFARE FUNCTIONS IN A FUZZY ENVIRONMENT. Kybernetes. 16, 241-245 (1987). https://doi.org/10.1108/eb005774 DS Docta Complutense RD 13 jul 2025