Title : ( New functional forms of Lorenz curves by maximizing Tsallis entropy of income share function under the constraint on generalized Gini index )
Authors: A. Khosravi Tanak , Gholam Reza Mohtashami Borzadaran , Jafar Ahmadi ,
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Abstract
he Lorenz curve is one of the most powerful tools in the analysis of the size distribution of income and wealth. In the past decades, many authors have proposed different functional forms for estimating Lorenz curves using a variety of approaches. In this paper, new functional forms are derived by maximizing Tsallis entropy of income share function subject to a given generalized Gini index. The obtained Lorenz curves are fitted to the income data sets of three Asian countries in 1988 and their relative performances with respect to some well-known parametric models of Lorenz curves are compared using two types of goodness of fit measures.
Keywords
Share function Lorenz curve Tsallis entropy Maximum entropy Generalized Gini index
@article{paperid:1070513,
author = { and Mohtashami Borzadaran, Gholam Reza and Ahmadi, Jafar},
title = {New functional forms of Lorenz curves by maximizing Tsallis entropy of income share function under the constraint on generalized Gini index},
journal = {Physica A: Statistical Mechanics and its Applications},
year = {2018},
volume = {511},
number = {1},
month = {November},
issn = {0378-4371},
pages = {280--288},
numpages = {8},
keywords = {Share function
Lorenz curve
Tsallis entropy
Maximum entropy
Generalized Gini index},
}
%0 Journal Article
%T New functional forms of Lorenz curves by maximizing Tsallis entropy of income share function under the constraint on generalized Gini index
%A
%A Mohtashami Borzadaran, Gholam Reza
%A Ahmadi, Jafar
%J Physica A: Statistical Mechanics and its Applications
%@ 0378-4371
%D 2018
