Montero De Juan, Francisco Javier2023-06-202023-06-2019880165-0114https://hdl.handle.net/20.500.14352/59520An axiomatic treatment of an aggregation problem when the aggregated group is defined as a fuzzy group, was proposed by the author in a previous paper. In the present paper, the fuzzy majority rule is characterized and an impossibility theorem for pure mixed rules is obtained. Moreover, existence of absolutely decisive groups is studied.engjournal articlehttp://www.sciencedirect.com/science/article/pii/0165011488900954restricted access519.8Aggregation operationsDecisivenessFuzzy groupsInvestigación operativa (Matemáticas)1207 Investigación Operativa