Inequality decomposition by population subgroups for ordinal data
AbstractWe present a class of decomposable inequality indices for ordinal data (e.g. self-reported health survey). It is characterized by well-known inequality axioms (e.g. scale invariance) and a decomposability axiom which states that an index can be represented as a function of inequality values in subgroups and subgroup sizes. The only decomposable indices are strictly monotonic transformations of the weighted average of frequencies in categories. Among the indices proposed in the literature only the absolute value index (Abul Naga and Yalcin, 2008; Apouey, 2007) is decomposable. As an empirical illustration we calculate regional contributions to overall health inequality in Switzerland.
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Bibliographic InfoPaper provided by Faculty of Economic Sciences, University of Warsaw in its series Working Papers with number 2011-24.
Length: 21 pages
Date of creation: 2011
Date of revision:
ordered response health data; inequality measurement; health inequality; ordinal data; decomposition;
Other versions of this item:
- Kobus, Martyna & Miłoś, Piotr, 2012. "Inequality decomposition by population subgroups for ordinal data," Journal of Health Economics, Elsevier, vol. 31(1), pages 15-21.
- I3 - Health, Education, and Welfare - - Welfare, Well-Being, and Poverty
- I1 - Health, Education, and Welfare - - Health
This paper has been announced in the following NEP Reports:
- NEP-ALL-2012-01-03 (All new papers)
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
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Elsevier, vol. 27(6), pages 1614-1625, December.
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- repec:hal:wpaper:halshs-00850014 is not listed on IDEAS
- Martyna Kobus, 2014. "On the measurement of polarization for ordinal data," Working Papers 325, ECINEQ, Society for the Study of Economic Inequality.
- Bénédicte H. Apouey & Jacques Silber, 2013. "Inequality and bi-polarization in socioeconomic status and health: Ordinal approaches," PSE Working Papers halshs-00850014, HAL.
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