“Economic inequality refers to how economic variables are distributed—among individuals in a group, among groups in a population, or among countries. Development theory has largely been concerned with inequalities in standards of living, such as inequalities in income/wealth, education, health, and nutrition”.
Source: UN. 2015. "Development Issues No. 1: Concepts of Inequality". <https://www.un.org/en/development/desa/policy/wess/wess_dev_issues/dsp_policy_01.pdf>. Accessed 12 June 2020.