In this paper we characterize choice behaviour that picks the median element from a set of feasible alternatives. It is easily seen that this choice behaviour violates most of the standard consistency conditions for set contraction and set expansion. The paper offers a complete characterization...

This book studies two distinct approaches to distributive justice. The firstoriginates from axiomatic social choice theory and studies positionalist aggregation functions. Profiles of individual extended orderings over alternative social states are mapped into a social ordering of these states....