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<p class="MsoNormal">But were there social insulating factors that are now absent?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><a href="https://www.nytimes.com/2020/12/09/opinion/trump-social-status-resentment.html">https://www.nytimes.com/2020/12/09/opinion/trump-social-status-resentment.html</a><o:p></o:p></p>
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<p class="MsoNormal">..that there was once a “sufficient” level to achieve?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Marcus<o:p></o:p></p>
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<p class="MsoNormal"><b>From:</b> Friam <friam-bounces@redfish.com> <b>On Behalf Of
</b>David Eric Smith<br>
<b>Sent:</b> Wednesday, December 9, 2020 5:25 AM<br>
<b>To:</b> The Friday Morning Applied Complexity Coffee Group <friam@redfish.com><br>
<b>Subject:</b> [FRIAM] More on social mobility<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">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):<o:p></o:p></p>
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<p class="MsoNormal"><a href="https://www.brookings.edu/blog/social-mobility-memos/2018/01/11/raj-chetty-in-14-charts-big-findings-on-opportunity-and-mobility-we-should-know/">https://www.brookings.edu/blog/social-mobility-memos/2018/01/11/raj-chetty-in-14-charts-big-findings-on-opportunity-and-mobility-we-should-know/</a><o:p></o:p></p>
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<p class="MsoNormal">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.<o:p></o:p></p>
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<p class="MsoNormal">I got to the above from an article by Edsall that, again, seems to me well-sourced:<o:p></o:p></p>
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<p class="MsoNormal"><a href="https://www.nytimes.com/2020/12/09/opinion/trump-social-status-resentment.html">https://www.nytimes.com/2020/12/09/opinion/trump-social-status-resentment.html</a><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">So probably necessary to refuse to speak in sound-bites about income or wealth mobility, and to use more complete sentences that refer to specific conditions, even though if one has that granularity, there are interpretations of the sound-bite
that mobility has been badly impaired that still seem correct, to me.<o:p></o:p></p>
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<p class="MsoNormal">EricS<o:p></o:p></p>
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