A new class of preference-aggregation rules is proposed, weak-veto rules. Weak-veto rules are applicable in settings …

This paper is concerned with preference-aggregation rules satisfying desirable efficiency and solidarity requirements. We …

literature on aggregation of fuzzy preferences. We restrict ourselves to “pure aggregation” theory and, accordingly, do not cover … strategic aspects of social choice. We present Arrovian aggregation problems in a rather standard framework as well as in a very …

. It addresses the question whether there exist non-dictatorial aggregation functions of convex risk measures satisfying … Arrow's impossibility theorem. For infinite electorates, the possibility of rational aggregation depends on an …-theoretic approach to aggregation theory inspired by Lauwers and Van Liedekerke (J Math Econ 24(3):217-237, 1995). Diverse applications …

relation. For two alternatives and an odd number of agents, it follows from May’s Theorem that the majority aggregation rule is …

]. The paper first proposes a unified framework for the analysis of the relation between various aggregation problems and the …-type preference aggregation ; Judgment aggregation ; Systematicity ; Model theory ; First-order predicate logic ; Filter ; Ultrafilter …

) preference orderings. This paper investigates the problem of Arrovian aggregation of such preferences - and proves dictatorial …-utility preferences are given. A novel proof methodology for special aggregation problems, based on model theory (in the sense of …

there exist nondictatorial aggregation functions of convex risk measures satisfying Arrow-type rationality axioms (weak …'s impossibility theorem for finite electorates. For infinite electorates, the possibility of rational aggregation depends on a uniform … theorem and Fishburn's possibility theorem. The proof methodology is based on a model-theoretic approach to aggregation theory …