U.S. Income Inequality Has Jumped More Than Any Other Major Western Country's Since 1960

LOOK: The Only Chart You Need To Understand America

The United States of America is number one in an unfortunate category.

The top one percent's share of total income has risen the more in the U.S. than in any other major Western country since 1960, according to a new paper by Thomas Piketty and Emmanuel Saez, economics professors at the Paris School of Economics and the University of California at Berkeley, respectively. While the top one percent's share of income declined in some European countries and rose by up to 4 percentage points in most others during that period, it spiked by more than 9 percentage points in the U.S.

Tax policy also has tilted more favorably toward the rich in the U.S. than in nearly all major Western countries. The top income tax rate has fallen modestly in most major Western countries since 1960, but it has collapsed by more than 45 percentage points here.

Check out the chart below. "Top MTR" means "top marginal tax rate," or the income tax rate of the richest Americans (that's the U.S. in the top left corner, by the way):

income inequality

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