Steve Landsberg points out the flaw in the often-quoted statistic that the median US worker has enjoyed hardly any income gain over the past few decades, with median wages growing from $25,000 in 1980 to $25,700 in 2005:
Each demographic group has progressed, but at the same time, there’s been a great influx of lower income groups — women and nonwhites — into the workforce. This creates the illusion that nobody’s progressing when in fact everybody’s progressing.
Actual growth rates are as high as 75% for white women and 62% for nonwhite women.