Where Did the Productivity Growth Go? Inflation Dynamics and the Distribution of Income
研究发现1966-2001年间，美国经济生产率增长带来的实际工资收入增长仅惠及收入最高的10%人群，中位数实际工资几乎未增长，其余90%人群几乎未分享到生产率提升的成果。
A basic tenet of economic science is that productivity growth is the source of growth in real income per capita. But our results raise doubts by creating a direct link between macro productivity growth and the micro evolution of the income distribution. We show that over the entire period 1966-2001, as well as over 1997-2001, only the top 10 percent of the income distribution enjoyed a growth rate of real wage and salary income equal to or above the average rate of economy-wide productivity growth. Growth in median real wage and salary income barely grew at all while average wage and salary income kept pace with productivity growth, because half of the income gains went to the top 10 percent of the income distribution, leaving little left over for the bottom 90 percent. Half of this inequality effect is attributable to gains of the 90th percentile over the 10th percentile; the other half is due to increased skewness within the top 10 percent.