Some Notes on the Gini Index and New Inequality Measures: The nth Gini Index

A new family of inequality indices based on the deviation between the expected maximum and the expected minimum of random samples, called the nth Gini index is presented. These indices generalize the Gini index. At the same time, this family of indices and the <i>S</i>-Gini index are gen...

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Main Authors: José Manuel Gavilan-Ruiz, África Ruiz-Gándara, Francisco Javier Ortega-Irizo, Luis Gonzalez-Abril
Format: Article
Language:English
Published: MDPI AG 2024-11-01
Series:Stats
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Online Access:https://www.mdpi.com/2571-905X/7/4/78
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author José Manuel Gavilan-Ruiz
África Ruiz-Gándara
Francisco Javier Ortega-Irizo
Luis Gonzalez-Abril
author_facet José Manuel Gavilan-Ruiz
África Ruiz-Gándara
Francisco Javier Ortega-Irizo
Luis Gonzalez-Abril
author_sort José Manuel Gavilan-Ruiz
collection DOAJ
description A new family of inequality indices based on the deviation between the expected maximum and the expected minimum of random samples, called the nth Gini index is presented. These indices generalize the Gini index. At the same time, this family of indices and the <i>S</i>-Gini index are generalized by proposing the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>u</mi><mi>v</mi><mo>-</mo></mrow></semantics></math></inline-formula>Gini index, which turns out to be a convex combination of the S-Gini index and the Lorenz family of inequality measures. This family of Gini indices provides a methodology for achieving perfect equality in a given distribution of incomes. This is achieved through a series of successive and equal increases in the incomes of each individual.
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spelling doaj-art-8750166701e4492b806a1a3e29dc8aa22025-08-20T02:56:58ZengMDPI AGStats2571-905X2024-11-01741354136510.3390/stats7040078Some Notes on the Gini Index and New Inequality Measures: The nth Gini IndexJosé Manuel Gavilan-Ruiz0África Ruiz-Gándara1Francisco Javier Ortega-Irizo2Luis Gonzalez-Abril3Department of Applied Economics I, Faculty of Economics and Business Studies, University of Seville, Avda. Ramón y Cajal, 1, E-41018 Sevilla, SpainDepartment of Applied Economics I, Faculty of Economics and Business Studies, University of Seville, Avda. Ramón y Cajal, 1, E-41018 Sevilla, SpainDepartment of Applied Economics I, Faculty of Economics and Business Studies, University of Seville, Avda. Ramón y Cajal, 1, E-41018 Sevilla, SpainDepartment of Applied Economics I, Faculty of Economics and Business Studies, University of Seville, Avda. Ramón y Cajal, 1, E-41018 Sevilla, SpainA new family of inequality indices based on the deviation between the expected maximum and the expected minimum of random samples, called the nth Gini index is presented. These indices generalize the Gini index. At the same time, this family of indices and the <i>S</i>-Gini index are generalized by proposing the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>u</mi><mi>v</mi><mo>-</mo></mrow></semantics></math></inline-formula>Gini index, which turns out to be a convex combination of the S-Gini index and the Lorenz family of inequality measures. This family of Gini indices provides a methodology for achieving perfect equality in a given distribution of incomes. This is achieved through a series of successive and equal increases in the incomes of each individual.https://www.mdpi.com/2571-905X/7/4/78inequality measuresmean differenceorder statisticsrank-dependent inequality measurement
spellingShingle José Manuel Gavilan-Ruiz
África Ruiz-Gándara
Francisco Javier Ortega-Irizo
Luis Gonzalez-Abril
Some Notes on the Gini Index and New Inequality Measures: The nth Gini Index
Stats
inequality measures
mean difference
order statistics
rank-dependent inequality measurement
title Some Notes on the Gini Index and New Inequality Measures: The nth Gini Index
title_full Some Notes on the Gini Index and New Inequality Measures: The nth Gini Index
title_fullStr Some Notes on the Gini Index and New Inequality Measures: The nth Gini Index
title_full_unstemmed Some Notes on the Gini Index and New Inequality Measures: The nth Gini Index
title_short Some Notes on the Gini Index and New Inequality Measures: The nth Gini Index
title_sort some notes on the gini index and new inequality measures the nth gini index
topic inequality measures
mean difference
order statistics
rank-dependent inequality measurement
url https://www.mdpi.com/2571-905X/7/4/78
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