According to The New York Post, 66% of the income growth in the United States between 2001 and 2007 went to the top 1% of all Americans. In 1950, the ratio of the average executive’s paycheck to the average worker’s paycheck was about 30 to 1. By the year 2000, that ratio had exploded to between 300 to 500 to one. Because American executives tend to be paid more in total compensation than do their European colleagues, the ratios are lower in in the E.U. Hence one might ask what is behind the trajectory in the United States.
The full essay is at "Ethics of American Executive Compensation."