Rising Top, Falling Bottom: Industries and Rising Wage Inequality
研究发现1996至2018年间整体收入不平等加剧主要源于产业间工资差距扩大，高薪科技产业与低薪零售产业分化加剧，高薪工人更集中于高薪产业，低薪工人更集中于低薪产业且工资溢价下降。
Most of the rise in overall earnings inequality from 1996 to 2018 is accounted for by rising between-industry dispersion. The contribution of industries is right-skewed with the top 10 percent of four-digit NAICS industries dominating. The top 10 percent are clustered in high-paying high-tech and low-paying retail sectors. In the top industries, high-wage workers are increasingly sorted to high-wage industries with rising industry premia. In the bottom industries, low-wage workers are increasingly sorted into lowwage industries, with rising employment and falling industry wage premia.