Results 51 to 60 of about 9,236 (198)

Investigating inequality: a Langevin approach

open access: yesCondensed Matter Physics, 2017
Inequality indices are quantitative scores that gauge the divergence of wealth distributions in human societies from the "ground state" of pure communism.
I. Eliazar
doaj   +1 more source

Transmuted Modified Inverse Rayleigh Distribution

open access: yesAustrian Journal of Statistics, 2015
We introduce the transmuted modified Inverse Rayleigh distribution by using quadratic rank transmutation map (QRTM), which extends the modified Inverse Rayleigh distribution.
Muhammad Shuaib Khan, Robert King
doaj   +1 more source

Modelling to Engineering Data: Using a New Two-Parameter Lifetime Model

open access: yesJournal of Function Spaces, 2022
A novel two-parameter continuous lifespan model is developed, based on a truncated Fréchet produced family of distributions known as the truncated Fréchet inverted Lindley distribution.
Mashail M. AL Sobhi
doaj   +1 more source

Análisis de la evolución temporal de las desigualdades con datos irregulares || Analyzing the Income Inequalities with Irregular Time Series [PDF]

open access: yesRevista de Métodos Cuantitativos para la Economía y la Empresa, 2012
En este artículo se proporciona una herramienta que permite estudiar las distribuciones de renta en una población a lo largo del tiempo, sin importar que los datos se distribuyan de forma irregular.
Callealta Barroso, Francisco Javier   +3 more
doaj  

Graphical Measures Summarizing the Inequality of Income of Two Groups

open access: yesStatistics and Public Policy, 2022
Recently, Gastwirth proposed two transformations and of the Lorenz curve, which calculates the proportion of a population, cumulated from the poorest or middle, respectively, needed to have the same amount of income as top .
Joshua Landon, Joseph Gastwirth
doaj   +1 more source

Comparison of four performance models in quantifying the inequality of leaf and fruit size distribution

open access: yesEcology and Evolution
The inequality in leaf and fruit size distribution per plant can be quantified using the Gini index, which is linked to the Lorenz curve depicting the cumulative proportion of leaf (or fruit) size against the cumulative proportion of the number of leaves
Lin Wang   +7 more
doaj   +1 more source

Heterogeneous Reservoir Characterization (Upper Bahariya Case study)

open access: yesARCHive-SR, 2019
Upper Bahariya reservoir is one of the big productive reservoirs in the Western Desert (Egypt). It is characterized by high degree of heterogeneity. So, it is very important to characterize it accurately for improving its recoverable oil. Different tools
Abdelwahab Bayoumi   +2 more
doaj   +1 more source

Estimating Lorenz and concentration curves in Stata [PDF]

open access: yes, 2016
Lorenz and concentration curves are widely used tools in inequality research. In this paper I present a new Stata command called -lorenz- that estimates Lorenz and concentration curves from individual-level data and, optionally, displays the results in a
Jann, Ben
core  

Lorenz curves.

open access: yes, 2018
Simulated Lorenz curves for exponents ranging from 2 to 4.5 (a). Lorenz curves for out-degrees of observed GRNs (b). TGs: target genes.
Erich Grotewold (59609)   +2 more
core   +1 more source

Weak orderings for intersecting Lorenz curves [PDF]

open access: yes, 2016
The Lorenz dominance is a primary tool for comparison of non-negative distributions in terms of inequality. However, in most of cases Lorenz curves intersect and the ordering is not fulfilled, so that some alternative (weaker) criteria need to be to ...
Bertoli-Barsotti, Lucio, Lando, Tommaso
core   +1 more source

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