Jesus, Glen, How did you read a 104-page paper in the last 2 hours?
Let me try to catch up…. Eric > On Dec 9, 2020, at 10:22 AM, uǝlƃ ↙↙↙ <[email protected]> wrote: > > I'm a little confused by these 2 plots from Chetty et al 2014: > https://linkprotect.cudasvc.com/url?a=http%3a%2f%2fwww.equality-of-opportunity.org%2fassets%2fdocuments%2fmobility_geo.pdf&c=E,1,EWLu4cM_9RwY2BIbaDWKKgnkDtUCHDzrO-J-aGqpBw4Ff7K3Z0iBK8K87ztnQmoWOqmCGbvhLD5lpb9D6wXlf043pQOzHh-o0zQtaWR35HQ,&typo=1 > > From the ranked plot, it seems like an equitable leveling/redistribution is > at work. But from the raw income plot, it simply seems like children make > less money than their parents (an absolute reduction in quality of life). > These seem paradoxical to me, meaning that perhaps I haven't grokked all the > data, or the particular data being plotted is inadequate to express the > trend. I confess I'm motivated by stories from Pinker and Shermer about > absolute improvements in the world (considered massively, not particularly), > which leads me to the leveling interpretation. > > On 12/9/20 5:25 AM, David Eric Smith wrote: >> To continue to try to add raw material to the discussion that EricC took up >> on this when I made some overly-simple claims earlier, here is a Brookings >> summary article on work by Raj Chetty (cited in the earlier thread as well): >> https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fwww.brookings.edu%2fblog%2fsocial-mobility-memos%2f2018%2f01%2f11%2fraj-chetty-in-14-charts-big-findings-on-opportunity-and-mobility-we-should-know%2f&c=E,1,UcbKXU_d6UupdLMKHI8ROyxSQtJjho_dT-rHCNEARSkLR3ffOT4MD4nYN6Yd9CnUBw08BKoUW_YLyQfE8BmiPWqAbNd0BFFB8byy_214glaH6F6LFgQ,&typo=1 >> >> <https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fwww.brookings.edu%2fblog%2fsocial-mobility-memos%2f2018%2f01%2f11%2fraj-chetty-in-14-charts-big-findings-on-opportunity-and-mobility-we-should-know%2f&c=E,1,v8x5Sfs8Fr2BBCXzt1Omp2bJoA7X8soDHGyXBmN4iIaQqbxjm7Vi1tYFCGCKG-UQQvgkkpM2NqPdlVCvdIZ8JfdJInsEpRQmMDV_eGwcuFFAW4iWhus,&typo=1> >> A thing I find striking in Chetty’s output is how many compilations he can >> produce that make statistical analysis superfluous. There are data that are >> so close to a perfect line that there is little for a regression to do, or >> that are so consistent with time-constancy that there is no suggestion of a >> signal to look for other than stasis. A lot of it seems to come from >> finding good conditions on which to bin data, though the bin categories do >> not seem highly artificial or cherry-picked, to me. > > > -- > ↙↙↙ uǝlƃ > <parent-child-income.png><parent-child-income-rank.png>- .... . -..-. . -. > -.. -..-. .. ... -..-. .... . .-. . > FRIAM Applied Complexity Group listserv > Zoom Fridays 9:30a-12p Mtn GMT-6 bit.ly/virtualfriam > un/subscribe > https://linkprotect.cudasvc.com/url?a=http%3a%2f%2fredfish.com%2fmailman%2flistinfo%2ffriam_redfish.com&c=E,1,huec7anE_Hz3Zw8KC14490FxRW9G9ROH-UJfvwh0YtcjqBZWAjqvx0j7jdFVElgMDGiHLiJ5v76cowXPsInDy0Wa0w6A7-E8dn8VZi4x8Q,,&typo=1 > archives: http://friam.471366.n2.nabble.com/ > FRIAM-COMIC > https://linkprotect.cudasvc.com/url?a=http%3a%2f%2ffriam-comic.blogspot.com%2f&c=E,1,5KijgNec_bwlEGnFIjORAYs0Ttq9kfZ5qQ_kTctHVLVieMRF1x9z7yJVTeqZNxVapnJmZWuRLOSo1zq58eXhs_ud4717FoEJzLRfhRP7Ih2v0AqI&typo=1 > - .... . -..-. . -. -.. -..-. .. ... -..-. .... . .-. . FRIAM Applied Complexity Group listserv Zoom Fridays 9:30a-12p Mtn GMT-6 bit.ly/virtualfriam un/subscribe http://redfish.com/mailman/listinfo/friam_redfish.com archives: http://friam.471366.n2.nabble.com/ FRIAM-COMIC http://friam-comic.blogspot.com/
