Decomposing Global Inequality
提出一种直观的加法分解方法，将全球收入基尼系数分解为国家内部和国家之间的差异。2005年，全球近一半的收入不平等源于欧洲、北美与亚洲之间的收入差距，其中中美差距占全球不平等的6%。
This paper provides an intuitive additive decomposition of the global income Gini coefficient with respect to differences within and between countries. In 2005, nearly half the total global income inequality is due to income differences between Europeans and North Americans on the one side and inhabitants of Asia on the other, with the China‐USA income differences alone accounting for six percent of global inequality. Historically, income differences between Asia and Europe have driven a large part of global inequality, but the quantitative importance of within‐Asia income inequality has increased substantially since 1950.