A cross-country analysis of feasible income equality using the sigmoid function and the Boltzmann distribution.

ABSTRACT: This study uses the sigmoid function in combination with the Boltzmann distribution, originally developed by Park and Kim (2021), in order to calculate the optimal income distribution that represents feasible income equality and maximizes total social welfare. Feasible income equality refers to optimal income distribution that is realistically attainable. By employing the data on quintile income shares and the Gini index of 71 countries in 2021 from the World Bank, the results indicate that the optimal income distributions representing feasible income equality, the corresponding values of the Gini index, and the respective shapes of the Lorenz curves of 71 countries are somewhat similar to each other. These results confirm Park and Kim (2021)'s conjecture in that the universal feasible equ

SUBMITTER: Sitthiyot T 

PROVIDER: S-EPMC12334062 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature