On measuring group-differentials displayed by socioeconomic indicators

This is a very short and elementary note which points (in a continuation of a recent tradition in the literature) to the importance of taking account of the level of a socioeconomic indicator in comparing group-differentials displayed by it. The requirement of 'level sensitivity' is captured in a couple of axioms, and a measure of differential, which satisfies both these axioms, is advanced. An empirical illustration of the note's concerns is also provided.