Socio-economic inequality: Relationship between Gini and Kolkata indices

Research output: Contribution to journalArticle


  • Arnab Chatterjee
  • Asim Ghosh
  • Bikas K. Chakrabarti

Research units

  • Saha Institute of Nuclear Physics
  • Indian Statistical Institute


Socio-economic inequality is characterized from data using various indices. The Gini (g) index, giving the overall inequality is the most common one, while the recently introduced Kolkata (k) index gives a measure of 1−k fraction of population who possess top k fraction of wealth in the society. Here, we show the relationship between the two indices, using both empirical data and analytical estimates. The significance of their relationship has been discussed.


Original languageEnglish
Pages (from-to)583-595
Number of pages13
JournalPhysica A: Statistical Mechanics and its Applications
Publication statusPublished - 15 Jan 2017
MoE publication typeA1 Journal article-refereed

    Research areas

  • Data analysis, Inequality indices, Spatial inequality

ID: 9115003