Chichilnisky, which establishes that, for the same family of preferences, social aggregation rules with these properties do not …

lt is shown that any continuous social aggregation rule for smooth preferences cannot simultaneously satisfy the …

We study the aggregation of preferences when intensities are taken into account: the aggregation of cardinal … choices there exist no continuous anonymous aggregation rules that respect unanimity, for such preferences or utilities. With …

constructs manifolds of preferences and applies this construction to the aggregation of preferences . We examine the topological … complexity of manifolds of smooth preferences and use this to determine when appropriate aggregation rules exist and when they do …