The theoretical background of the empirical investigations to be reported in this paper are positionalist aggregation functions which are numerically representable. More concretely, the broad Borda rule is proposed as an aggregation mechanism for the case of a complete set (profile) of so-called...

In this paper we axiomatically characterize two recursive procedures for defining a social group. The first procedure starts with the set of all individuals who are defined by everyone in the society as group members, while the starting point of the second procedure is the set of all individuals...