Correcting the concentration index.
In recent years attention has been drawn to several shortcomings of the Concentration Index, a frequently used indicator of the socioeconomic inequality of health. Some modifications have been suggested, but these are only partial remedies. This paper proposes a corrected version of the Concentration Index which is superior to the original Concentration Index and its variants, in the sense that it is a rank-dependent indicator which satisfies four key requirements (transfer, level independence, cardinal invariance, and mirror). The paper also shows how the corrected Concentration Index can be decomposed and generalized.
Erreygers
Guido
G
Department of Economics, University of Antwerp, City Campus, Prinsstraat 13, 2000 Antwerpen, Belgium. guido.erreygers@ua.ac.be
D003627:Data Interpretation, Statistical; D054624:Health Status Disparities; D006801:Humans; D015233:Models, Statistical; D012923:Social Class