On top of the studies within the article, there are other really interesting papers. Some time back I was searching information on the chiseling out of the middle class, and I found this paper [1]. And the paper does describe that chiseling out. In 1979 the middle class controlled 46% of all income, and the upper/rich classes controlled 30%. Today (as of 2014) the rich and upper class control 63% with the middle clas…
If you are swayed by facts and data, it's probably right up your alley.