"According to the International Labour Organization, two-thirds of countries for which data are available underwent an increase in income inequality in 1990-2005 between the top and bottom 10 percent of wage earners. Management-worker pay disparities rose to new heights. CEOs at the S&P 500 leading U.S. firms averaged $10.5 million in 2007, 344 times the pay of the average American worker. (And the top 50 U.S. hedge- and private-equity fund managers average $588 million each, some 19,000 times as much as the average U.S. worker.) Just three decades ago, CEO pay averaged only 30 to 40 times the pay of the average worker."
Gary Gardner and Michael Renner. "Meltdown or Green Deal: The global financial crisis has created an opening for a sustainability revolution," World Watch Jan/Feb 2009, 13-14.