Desigualdade na América

"the top 1% of Americans now receive about 15% of all income, up from about 8% in the 1960s and 1970s. Virtually all that rise came from marked increases in labour income. The share going to the top 1% is back to where it was a century ago. But whereas the elite's income then came largely from capital, today's rich gain their money from work.

...what lies behind this secular rise in top incomes?

...Most labour economists think the biggest cause of increasing wage inequality has been a rise in returns to education and skills, thanks largely to technological change. Mr Gordon and his colleague disagree, arguing instead that increased payments to superstars, such as baseball players, and out-of-control pay rises for chief executives, are more plausible reasons for the rise in inequality..."

[The Economist]