世界银行：全球不平等与经济增长：新冠肺炎前三十年和后三十年（英文版）

Global income inequality captures income differences among all individuals around the world. Global inequality around the world increased from 1820 to 1990 as incomes in richer countries grew faster than incomes in relatively poorer countries. However, these trends were reversed over the three decades starting in 1990. Inequality among all citizens of the world decreased as populous and relatively poorer countries, in particular China, reduced the income gap with richer parts of the world. Gr