This paper proposes an index of relative deprivation which, unlike the earlier indices, assumes that the deprivation of a person is sensitive to income transfers among those who are richer than him. The proposed index is quite flexible in accomodating value judgements on the degree of envy felt by individuals in the society.
Dr. Satya Paul, “An index of relative deprivation”, Economics Letters, vol. 36, pp. 337 - 341, 1991.