Educational tracking is a very controversial issue in education. The tracking debate is about the virtues of uniformity and vertical differentiation in the curriculum and teaching. The pro-tracking group claims that curriculum and teaching better aimed at children's varied interest and skills...

The absolute differentials ordering (ADO) and the relative differentials ordering (RDO) have been introduced as suitable alternative inequality criteria to Lorenz ordering (LO). We provide two new alternative proofs that ADO and RDO are sub-orderings of LO. Furthermore, we point out some...

Many distributional conflicts are characterized by the presence of acquired rights. The basic structure of these conflicts is that of the so-called claims problem, in which an amount of money has to be divided among individuals with differing claims and the total amount available falls short of...