Francesco Porro
Titoli dell'autore
A joint decomposition of the Zenga-84 inequality index
digital

formato:
Articolo
| STATISTICA & APPLICAZIONI - 2020 - 1


Anno:
2020
This paper provides a multi-decomposition (or joint decomposition) of the Zenga-84 inequality index, considering simultaneously different sources and subpopulations. The suggested procedure consists of two different stages: in the first one, each inequality pointwise measure is decomposed by sources and by subpopulations; in the second one, the decomposition of the synthetic index is obtained, by averaging the previously decomposed pointwise measures...
The joint decomposition of the Pietra index
digital

formato:
Articolo
| STATISTICA & APPLICAZIONI - 2020 - 1


Anno:
2020
In this paper, a multi-decomposition of the Pietra index is presented. This innovative methodology allows to achieve a relevant task, since it combines simultaneously the two most celebrated kinds of decomposition: by sources and by subpopulations. The key result of the proposed procedure is the detail level of decomposition: it allows to split the value of the index, by assessing the contribution of each source in each subpopulation. It is worth noting that this final result is not reached by all the decomposition procedures, since most of them do not permit to identify the contributions at so detailed level. The proposed joint decomposition is a sort of generalization, since from it two decompositions by sources and by subpopulations of the Pietra index, already proposed in the literature, can be obtained. Beyond the methodological details, an application based on the Survey Household Income and Wealth 2018 – carried out by Bank of Italy – is provided in order to clarify the advantages of the procedure.
A comparison of income distributions models through inequality
curves
digital

formato:
Articolo
| STATISTICA & APPLICAZIONI - 2016 - 2


Anno:
2016
In this paper the features of some distribution models used in the literature to depict income distributions are analysed. The analysis is based on the inequality curves generated by such models...
The distribution model with linear inequality curve I(p)
Gratis
digital
formato:
Articolo
| STATISTICA & APPLICAZIONI - 2011 - 1


Anno:
2011
SUMMARY
The aim of an important branch of inequality analysis is the investigation into the features of the
distribution models with specific kinds of inequality curves. This paper is an investigation into the
distribution model with linear inequality I ðpÞ curve. The definition of the corresponding distribution
function, and a procedure to obtain the probability density function are described. An analysis of
the constraints that the parameters of the line must satisfy is also provided. The methodological results
are supported by two applications with real air traffic control data.
Keywords: Inequality, Lorenz L(p) Curve, Zenga I (p) Curve, Income Distributions.
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