Economic Theory

, 42:505 | Cite as

New unit-consistent intermediate inequality indices

  • Coral del Río
  • Olga Alonso-VillarEmail author
Research Article


This paper introduces a class of intermediate inequality indices that is, at the same time, ray-invariant and unit-consistent. These measures allow us to make possible keeping some of the good properties of Krtscha’s (Models and measurement of welfare and inequality. Springer, Heidelberg, 1994) index while maintaining the “centrist” attitude no matter howmuch the income increases.By doing so, we approach the intermediate inequality concept suggested by Del Río and Ruiz-Castillo (Soc Choice Welfare 17:223–239, 2000) and generalize it in order to extend the range of income distributions that are comparable according to this ray-invariance criterion.


Income distribution Intermediate inequality indices Unit-consistency Ray-invariance 

JEL Classification



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Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  1. 1.Departamento de Economía Aplicada, Facultade de CC. EconómicasUniversidade de VigoVigoSpain

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