Selected Issues in the Rise of Income Inequality
调查了收入不平等加剧的三个通常被分开讨论的方面：底层90%人群内部的不平等、顶层10%人群内部的不平等以及各国间不平等（尤其是顶层收入者）的差异。
, in particular the increased skewness at the very top of the income distribution, has received enormous attention. This paper surveys three aspects of rising inequality that are usually discussed separately: inequality within the bottom 90 percent, inequality within the top 10 percent, and international differences in inequality, particularly among top earners.