Title:

A note on the Zenga index with respect to different results depending on grouping or not grouping the data

Group publication title:

Śląski Przegląd Statystyczny = Silesian Statistical Review

Title in english:

Silesian Statistical Review

Creator:

Ostasiewicz, Katarzyna

Subject and Keywords:

inequality ; Zenga index ; grouped data ; nierówności ; indeks Zengi ; grupowanie danych

Description:

Śląski Przegląd Statystyczny = Silesian Statistical Review, 2018, Nr 16, s. 181-186

Abstrakt:

The Zenga index of inequality is a new proposal of measuring this phenomenon. The properties and empirical applications of Zenga index (and the underlying Zenga curve) have been recently widely investigated. Its advantages (and differences, as compared to other existing measures) have been pointed out. However, one of the possible problems associated with the use of the Zenga index has not yet been appropriately addressed.Namely, the Zenga index assumes different values depending on whether it is applied to grouped or ungrouped data. As it may seem that due to contemporary computers power it is not necessary to group data, the problem still exists as a conceptual one. Moreover, in some situations – such as applying equivalence scales – avoiding grouping of the data is not possible even in principle. The problem is stated, illustrated by simple numerical examples and briefly discussed in this paper

Publisher:

Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu

Place of publication:

Wrocław

Date:

2018

Resource Type:

artykuł

Format:

application/pdf

Resource Identifier:

doi:10.15611/sps.2018.16.10

Language:

eng

Relation:

Śląski Przegląd Statystyczny = Silesian Statistical Review, 2018, Nr 16 (22)

Rights:

Pewne prawa zastrzeżone na rzecz Autorów i Wydawcy

Access Rights:

Dla wszystkich zgodnie z licencją

License:

CC BY-NC-ND 3.0 PL

Location:

Uniwersytet Ekonomiczny we Wrocławiu