Not sure what behavior your impression of Xs.
But here is a general overview of the report......from the US
classification....
The study, 'Economic Mobility: Is the American Dream Alive and
Well?" focuses on the income of males 30-39 in 2004 (those
born April, 1964 – March, 1974) and is based on
Census/BLS CPS March supplement data.
The study which was released on May 25, 2007, emphasized that in
real dollars, this generation made less (by 12%) than their
fathers had at that same age in 1974, thus reversing a historical
trend. The study also suggests that per year increases in
the portion of father/son family household income generated by
fathers/sons have slowed (from an average of 0.9% to 0.3%), barely
keeping pace with inflation, though increases in overall father/son
family household income are progressively higher each year because
more women are entering the workplace, contributing to family
household income