The Fading American Dream: Trends in Absolute Income Mobility Since 1940. Raj Chetty, 2016, Paper, “One of the defining features of the “American Dream” is the ideal that children have a higher standard of living than their parents. We assess whether the U.S. is living up to this ideal by estimating rates of “absolute income mobility” – the fraction of children who earn more than their parents – since 1940.Link