期刊名称：Federal Reserve Bank of St. Louis - Regional Economist
出版年度：2015
出版社：Federal Reserve Bank of St. Louis
摘要：D iscussions about changes in income among the poor, midd le class and rich have become popular, especially a fter Thomas Piketty's recent publication of Capital in the Twenty-First Century. W hat these d iscussions sometimes leave out is that income must be adjusted by the releva nt pr ices before it can be used to evaluate welfare. 1 This ar ticle argues that the evolution of income by household s of different income levels since the early 1980s may overstate differences in the evolution of welfare because the cost of goods consumed predominantly by the rich rose faster tha n the cost of goods consumed predominantly by the poor and middle class
