at the Times. Once upon a time it was almost automatic that Americans would make more money than their parents did at the same age. (This is adjusted for inflation.) Now it's a coin flip. And in the states that surprised America by voting for Trump – Wisconsin, Michigan, Ohio, Pennsylvania – the percentage is less than 50.
According to Chetty, the rise of inequality has caused more of this change than the slowdown in overall economic growth. If inequality had not increased since 1970, the share of Americans earning more than their parents would be 80 percent.