Results 21 to 30 of about 9,236 (198)

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

Mathematics, 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

Lorenz-generated bivariate Archimedean copulas

Dependence Modeling, 2020
A novel generating mechanism for non-strict bivariate Archimedean copulas via the Lorenz curve of a non-negative random variable is proposed. Lorenz curves have been extensively studied in economics and statistics to characterize wealth inequality and ...
Fontanari Andrea, Cirillo Pasquale, Oosterlee Cornelis W.   +2 more
doaj   +1 more source

An analytical analysis of income variability captured by Lorenz curves [PDF]

Journal of Research and Innovation for Sustainable Society
This study provides an analytical examination of income variability in Romania, with a focus on the period 2020–2024, using Lorenz curves and associated inequality metrics.
Adela Sorinela Safta, Lavinia Popescu
doaj   +1 more source

Right Truncated Lomax Distribution: Properties and Estimation [PDF]

The Egyptian Statistical Journal, 2021
In this paper, we propose the truncated Lomax distribution. Fundamental properties of the new distribution are studied such as; moments, moment generating and characteristic function, quantile function, incomplete moments, Lorenz and Bonferroni curves ...
A. Elseherty, Mohamed Sabry
doaj   +1 more source

Lognormal Lorenz and normal receiver operating characteristic curves as mirror images [PDF]

Royal Society Open Science, 2015
The Lorenz curve for assessing economic inequality depicts the relation between two cumulative distribution functions (CDFs), one for the distribution of incomes or wealth and the other for their first-moment distribution.
R. John Irwin, Michael J. Hautus
doaj   +1 more source

Recalculation of error growth models' parameters for the ECMWF forecast system [PDF]

Geoscientific Model Development, 2021
This article provides a new estimate of error growth models' parameters approximating predictability curves and their differentials, calculated from data of the ECMWF forecast system over the 1986 to 2011 period.
H. Bednář, A. Raidl, J. Mikšovský
doaj   +1 more source

Carbon Lorenz curves [PDF]

Resource 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

A simple method for estimating the Lorenz curve

Humanities & Social Sciences Communications, 2021
Given many popular functional forms for the Lorenz curve do not have a closed-form expression for the Gini index and no study has utilized the observed Gini index to estimate parameter(s) associated with the corresponding parametric functional form, a ...
Thitithep Sitthiyot, Kanyarat Holasut
doaj   +1 more source

Quantum relative Lorenz curves [PDF]

Physical 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

Lorenz Surfaces Based on the Sarmanov–Lee Distribution with Applications to Multidimensional Inequality in Well-Being

Mathematics, 2020
The purpose of this paper is to derive analytic expressions for the multivariate Lorenz surface for a relevant type of models based on the class of distributions with given marginals described by Sarmanov and Lee.
José María Sarabia, Vanesa Jorda
doaj   +1 more source