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This analytical tool illustrates the entropy class of inequality indexes. In particular, it shows how different inequality indexes may be obtained by using a general definition (class) of indexes by assigning different values to a fixed parameter. A step-by-step procedure and numerical examples then show how to move from conceptual to operational ground.

For further information, see also:

• Charting Income Inequality. The Lorenz Curve. EASYPol Series 000
• Social Welfare Analysis of Income Distributions: Ranking Income Distributions with Lorenz Curves. EASYPOl Series 001
• Social Welfare Analysis of Income Distributions: Ranking Income Distributions with Crossing Generalised Lorenz Curves. EASYPol Sereis 003
• Inequality Analysis: The Gini Index. EASYPol Series 040
• Policy Impacts on Inequality: Inequality and Axioms for its Measurement. EASYPol Series 054

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.