Results 21 to 30 of about 10,097 (263)

Estimating Disease Risk Using Lorenz Curve and Negative Binomial Regression [PDF]

open access: yesالمجلة المصرية للسکـان وتنظيم الأسرة, 2004
The paper proposes a parametric approach to estimate the Lorenz curve and the Gini index in the context of describing exposure-disease association. Nonparametric bootstrap statistical inference method is employed for generating estimates of statistical ...
Ibrahim M. Abdallah
doaj   +1 more source

Lorenz Curve-Based Entropy Thresholding on Circular Histogram

open access: yesIEEE Access, 2020
Circular histogram thresholding is a new threshold selection method in color image segmentation. However, the method of the existing circular histogram thresholding based on the Otsu Criteria lacks the generality of using the circular histogram. In order
Chao Kang, Chengmao Wu, Jiulun Fan
doaj   +1 more source

Evaluation of an Alternative Functional Form to Fit the Lorenz Curve for the Concentration Index Calculation

open access: yesAtmosphere, 2023
Precipitation concentration indices have become a popular tool for analyzing the structure of daily precipitation amounts. Among the existing indices, the concentration index (CI) is widely used.
Gerardo Núñez-González   +2 more
doaj   +1 more source

Asymptotic Results in Broken Stick Models: The Approach via Lorenz Curves

open access: yesMathematics, 2020
A stick of length 1 is broken at random into n smaller sticks. How much inequality does this procedure produce? What happens if, instead of breaking a stick, we break a square? What happens asymptotically?
Gheorghiță Zbăganu
doaj   +1 more source

Carbon Lorenz curves [PDF]

open access: yesResource and Energy Economics, 2010
The purpose of this paper is twofold. First, it exhibits that standard tools in themeasurement of income inequality, such as the Lorenz curve and the Gini-index,can successfully be applied to the issues of inequality measurement of carbonemissions and the equity of abatement policies across countries.
openaire   +5 more sources

Group averaging and the Gini deviation

open access: yesRUDN Journal of Economics, 2021
It is known that partitioning a society into groups with subsequent averaging in each group decreases the Gini coefficient. The resulting Lorenz function is piecewise linear.
Oleg I. Pavlov, Olga Yu. Pavlova
doaj   +1 more source

Ranking intersecting Lorenz curves [PDF]

open access: yesSocial Choice and Welfare, 2004
This paper is concerned with the problem of ranking Lorenz curves in situations where the Lorenz curves intersect and no unambiguous ranking can be attained without introducing weaker ranking criteria than first-degree Lorenz dominance. To deal with such situations two alternative sequences of nested dominance criteria between Lorenz curves are ...
openaire   +10 more sources

An Exponential Family of Lorenz Curves [PDF]

open access: yesSouthern Economic Journal, 2001
A new method for building parametric‐functional families of Lorenz curves, generated from an initial Lorenz curve (which satisfies some regularity conditions), is presented. The method is applied to the exponential family since they use the exponential Lorenz curves as their generating curves.
Sarabia Alegría, José María   +2 more
openaire   +2 more sources

Assessing spatial inequality in cancer service access in regional areas

open access: yesCogent Public Health, 2022
This paper applies economic concepts from measuring income inequality to an exercise in assessing spatial inequality in cancer service access in regional areas. We propose a mathematical model for accessing chemotherapy among local government areas (LGAs)
Ka C. Chan   +2 more
doaj   +1 more source

Quantum relative Lorenz curves [PDF]

open access: yesPhysical Review A, 2017
ver2: 14 pages, 3 figures, published version; ver1: 5 pages + 2 figures + 15 more pages + 1 more ...
Buscemi, Francesco, Gour, Gilad
openaire   +2 more sources

Home - About - Disclaimer - Privacy