Abstract
Income distribution shows how the total GDP of a country is distributed among people and among production factors. Inincome distribution studies, the total population is divided into five equal groups. However, it is known that the share of the poorest 20% and the richest 20% in the total population is low, and the share of the middle group in the total population is relatively high. The main purpose of this study is to calculate the income distribution inequality of the middle income group. If the income distribution inequality with in the middle income group differs significantly from the income distribution inequality of the whole country, monitoring this is important in terms of ensuring justice in income distribution.
In this study, the middle income group’s income inequality is calculated by using questionnaire data and the Turkish Statistical Institute data. The data were analyzed with the SPSS program. According to the findings of the questionnaire conducted in Afyonkarahisar city center, the Gini coefficient of the middle income group was found 0.27. The Gini coefficient for the same group was found 0.17 by using the Turkish Statistical Institute data. The findings show that middle income group’s distribution inequality is significantly less than total income distribution inequality.