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Inequality Analysis: The Gini Index  











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    Policy Impacts on Inequality: Welfare Based Measures of Inequality - The Atkinson Index  2005
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    This tool illustrates one of the most popular welfare-based measures of inequality, the Atkinson Index. In particular, it discusses the foundations of this Index, in terms of social welfare specifications, and the concept of equally distributed equivalent income on which the measure is based. The use of this measure is then exemplified in a step-by step procedure and in a numerical example.
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    Describing income inequality : Theil Index and Entropy Class Indexes  2006
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    This module 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.
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    Social Welfare Analysis of Income Distributions: Social Welfare, Social Welfare Functions and Inequality Aversion  2006
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    This module illustrates the concept of social welfare and the possible ways to define social welfare functions. In particular, it deals with how to pass from inequality to social welfare analysis and how social welfare analysis may embody different attitudes with regard to inequality aversion. A step-by-step procedure and numerical examples are also discussed to give operational content to the tool.

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