I like your link, but I couldn't find that particular statistic within it. Could you clarify?
Most of the studies I've seen reach the opposite conclusion, that parental lifetime income highly predicts the income of their children. For example, a child of parents in the 90th percentile has an expected income of over $100K, while a child of parents in the 10th percentile has an expected income of less than $40K.
Income isn't wealth, but I'd be surprised if the correlation isn't strong. What percentage of individuals in the US of 90th percent household wealth came from families in the top half versus bottom half growing up? I don't know off hand, but if I had to bet blindly on outcomes I'd strongly favor betting on the individual who started out better off.
Most of the studies I've seen reach the opposite conclusion, that parental lifetime income highly predicts the income of their children. For example, a child of parents in the 90th percentile has an expected income of over $100K, while a child of parents in the 10th percentile has an expected income of less than $40K.
http://www.theatlantic.com/business/archive/2015/07/america-... (which comes from http://inequality.stanford.edu/sites/default/files/economic_...)
Income isn't wealth, but I'd be surprised if the correlation isn't strong. What percentage of individuals in the US of 90th percent household wealth came from families in the top half versus bottom half growing up? I don't know off hand, but if I had to bet blindly on outcomes I'd strongly favor betting on the individual who started out better off.