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Policy impacts on inequality: Decomposition of Income Inequality by Subgroups. EASYPol Series 052

This analytical tool illustrates how to decompose inequality measures by subgroups of populations. In particular, it defines the concepts of within and between inequality and analyses how different inequality indexes perform with respect to this decomposition. In particular, the performance of the analysis of variance, the Gini Index and the Theil Index will be discussed. A step-by-step procedure and numerical examples give operational content to the tool.

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This paper is part of the FAO Policy series: EASYPol-Resources for policy making (in agriculture, rural development and food security). To find other EASYPol series' resources, go to the Policy Support and Governance website>Resources and type "EASYPol" in the free text search.

Bellu, L.G., Liberati, P.