Economic mobility in the United States has nearly halved since 1940: The fraction of children earning more than their parents fell from 92% for children born in 1940 to 50% for children born in 1984.

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Economic mobility in the United States has nearly halved since 1940: The fraction of children earning more than their parents fell from 92% for children born in 1940 to 50% for children born in 1984.