New Raj Chetty study of income mobility finds privileged Great Plains working class whites still hogging most of Magic Dirt, while blacks and Native Americans are still stuck on Tragic Dirt http://www.unz.com/isteve/new-chetty-study-finds-privileged-great-plains-white-people-still-hogging-magic-dirt-blacks-native-americans-stuck-on-tragic-dirt/ … Graph of working class upward mobility: blue good, red bad:pic.twitter.com/Hj2Nq2Vwxv