English

On a property of the inequality curve $\lambda(p)$

Methodology 2018-06-18 v1

Abstract

The Zenga (1984) inequality curve is constant in p for Type I Pareto distributions. We show that this property holds exactly only for the Pareto distribution and, asymptotically, for distributions with power tail with index -a, with a greater than 1. Exploiting these properties one can develop powerful tools to analyze and estimate the tail of a distribution.

Cite

@article{arxiv.1806.05928,
  title  = {On a property of the inequality curve $\lambda(p)$},
  author = {Emanuele Taufer and Flavio Santi and Giuseppe Espa and Maria Michela Dickson},
  journal= {arXiv preprint arXiv:1806.05928},
  year   = {2018}
}

Comments

6 pages, 1 figure

R2 v1 2026-06-23T02:31:11.305Z