An exact calculation method for Gini coefficient and its application in China. (18th August 2018)

• Record Type: Journal Article
• Authors: Chen, Li-Shuang; Huang, Qi
• Is Part Of: Journal of discrete mathematical sciences & cryptography. Volume 21:Number 6(2018)
• Page Start: 1235
• Page End: 1240
• Publication Date: 2018-08-18
• Subjects: Gini coefficient -- N-aliquot part calculation formula -- Income gap between the poor and the rich -- Chinese practice; Computer science -- Mathematics -- Periodicals; Cryptography -- Periodicals; Computer science -- Mathematics; Cryptography; Periodicals; 004.0151
• DOI: 10.1080/09720529.2018.1525906
• Languages: English
• ISSNs: 0972-0529

Abstract

Abstract: Although there are many methods for calculating the Gini coefficient, but most of them are ultimately applied to Chinese practice through some kind of approximation means. A more accurate calculation method of N-aliquot part Gini coefficient is obtained and applied to Chinese practice through a rigorous mathematical derivation in this paper. It is found that the Gini coefficients in urban areas, rural areas and the whole China have obvious inverted U-shaped characteristics; it is an apparent turning point in 2008. At the same time, the population-weighted contribution rate study shows, the contribution rate has continued to increase from 14.3% in 2000 to 32.8% in 2015 to the national Gini coefficient coming from the urban group, however it has continued to fall from 23.8% to 8.7% coming from rural areas.