Top US income earners increase share of the pie.

NEW DATA SHOW EXTRAORDINARY JUMP IN INCOME CONCENTRATION IN 2004
By Aviva Aron-Dine and Isaac Shapiro

Economists Thomas Piketty and Emmanuel Saez have recently made available an updated version of their groundbreaking data series on U.S. income inequality.[1] The data are unique because of the detailed information they provide regarding income gains at the top of the income spectrum, and also because they extend back to 1913. By contrast, widely used Census data on income developments do not capture income trends among the top one percent of households and go back only to the end of World War II. CBO data, which do capture income trends among the top one percent, show there was a substantial increase in income concentration between 2002 and 2003, but those data do not yet extend beyond 2003.[2]

The Piketty and Saez data offer the first real snapshot of income trends among those at the pinnacle of the income spectrum in 2004. The data show that income gains between 2003 and 2004 were particularly large for those at the very top of the income spectrum, resulting in a nearly unprecedented one-year increase in income concentration.[3] The Piketty and Saez data show:

This is old but perhaps not everyone has seen it. The whole article is here.


From 2003 to 2004, the average incomes of the bottom 99 percent of households grew by less than 3 percent, after adjusting for inflation. In contrast, the average incomes of the top one percent of households experienced a jump of more than 18 percent, after adjusting for inflation. (Census data show that real median income fell between 2003 and 2004. Average income is pulled up by gains at the top of the income spectrum; much of the 2.3 percent rise among the bottom 99 percent seems to largely reflects gains by households in the top decile of the income spectrum. In contrast, trends in median income capture the experience of households in the middle of the income spectrum.)

The top one percent of households (those with annual incomes above about $315,000 in 2004) garnered 53 percent of the income gains in 2004.