Trying to find references for this, I've found a New York Times article(1) that claims that upwards social mobility has not changed in 50 years. The article poi

Trying to find references for this, I've found a New York Times article(1) that claims that upwards social mobility has not changed in 50 years. The article points to the research site(2), where they say: > Our work shows that children's prospects of earning more than their parents have fallen from 90% to 50% over the past half century. Is the second source referring to absolute mobility? (1) https://www.nytimes.com/2014/01/23/business/upward-mobility-has-not-declined-study-says.html?_r=0 https://www.nytimes.com/2014/01/23/business/upward-mobility-... (2) http://www.equality-of-opportunity.org/ http://www.equality-of-opportunity.org/