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Correcting the Concentration Index

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  • ERREYGERS, Guido

Abstract

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 the only rank-dependent indicator which satis.es four key requirements (transfer, level independence, cardinal consistency, and mirror). The paper also shows how the corrected Concentration Index can be decomposed and generalized.

Suggested Citation

  • ERREYGERS, Guido, 2006. "Correcting the Concentration Index," Working Papers 2006027, University of Antwerp, Faculty of Business and Economics.
    • Handle: RePEc:ant:wpaper:2006027
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    References listed on IDEAS

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    1. Wagstaff, Adam & Paci, Pierella & van Doorslaer, Eddy, 1991. "On the measurement of inequalities in health," Social Science & Medicine, Elsevier, vol. 33(5), pages 545-557, January.
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    More about this item

    Keywords

    Health inequality; Socioeconomic inequality; Concentration Index;
    All these keywords.

    JEL classification:

    • D63 - Microeconomics - - Welfare Economics - - - Equity, Justice, Inequality, and Other Normative Criteria and Measurement
    • I10 - Health, Education, and Welfare - - Health - - - General

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