{"id":2392,"date":"2010-10-24T00:27:45","date_gmt":"2010-10-24T07:27:45","guid":{"rendered":""},"modified":"2011-06-16T12:30:34","modified_gmt":"2011-06-16T19:30:34","slug":"ssrn-antifragility-robustness-and-fragility-inside-the-black-swan-domain-by-nassim-taleb","status":"publish","type":"post","link":"https:\/\/www.blackswanreport.com\/blog\/2010\/10\/ssrn-antifragility-robustness-and-fragility-inside-the-black-swan-domain-by-nassim-taleb\/","title":{"rendered":"SSRN-Antifragility, Robustness, and Fragility, Inside the &#39;Black Swan&#39; Domain by Nassim Taleb"},"content":{"rendered":"<blockquote><p>Shared by  JohnH<br \/>\n<br \/>\nRevised 10\/22\/10<\/p><\/blockquote>\n<div>\n<div>Antifragility, Robustness, and Fragility, Inside the &#8216;Black Swan&#8217; Domain\n<\/div>\n<p><center><br \/>\n<font face=\"Myriad Roman, Arial, Helvetica, Sans-serif;\" size=\"2\"><br \/>\n<br \/><a href=\"http:\/\/papers.ssrn.com\/sol3\/cf_dev\/AbsByAuth.cfm?per_id=475810\" style=\"font-size:14px;font-weight:bold\" title=\"View other papers by this author\">Nassim  Nicholas Taleb <\/a><br \/>NYU-Poly<br \/>\n<\/font><\/p>\n<p><font face=\"Myriad Roman, Arial, Helvetica, Sans-serif;\" size=\"2\">September 2010<\/font><\/p>\n<p><\/center><br \/>\n<br \/>\n<strong><br \/>\n<font face=\"Myriad Roman, Arial, Helvetica, Sans-serif;\" size=\"2\">Abstract: <\/font><br \/>\n<\/strong>\u00a0\u00a0\u00a0\u00a0<br \/>\n<br \/>\n<font face=\"Myriad Roman, Arial, Helvetica, Sans-serif;\" size=\"2\"><br \/>\nThis discussion makes the distinction inside the Fourth Quadrant &#8220;Black Swan Domain&#8221; between fragile and robust to model (or representational) error on the basis of convexity. The notion of model error as a convex or concave stochastic variable; why deficit forecasting errors are biased in one direction; why large is fragile to errors; how economics as a discipline made the monstrously consequential mistake of treating estimated parameters as nonstochastic variables and why this leads to fat-tails even while using Gaussian models; the notion of epistemic uncertainty as embedded in model errors.<\/p>\n<p>In addition, it introduces a simple practical heuristic to measure (as an indicator of fragility) the sensitivity of a portfolio (or balance sheet) to model error. Finally, it sets an explicit path to conduct policy based on robustness. <\/font><\/p>\n<p>\n<font face=\"Myriad Roman, Arial, Helvetica, Sans-serif;\" size=\"2\"><\/font><br \/>\n<font face=\"Myriad Roman, Arial, Helvetica, Sans-serif;\" size=\"2\"><br \/>\nWorking Paper Series<br \/>\n<\/font>\n<\/p>\n<\/div>\n<h4 style=\"margin-left:15px\">\nDate posted: <font style=\"font-weight:normal\">August 31, 2010<\/font><br \/>\n; Last revised: <font style=\"font-weight:normal\">October 22, 2010<\/font><\/h4>\n","protected":false},"excerpt":{"rendered":"<p>Shared by  JohnH <\/p>\n<p>Revised 10\/22\/10<br \/>\nAntifragility, Robustness, and Fragility, Inside the &#8216;Black Swan&#8217; Domain<\/p>\n<p>Nassim  Nicholas Taleb NYU-Poly<\/p>\n<p>September 2010<\/p>\n<p>Abstract:<br \/>\n\u00a0\u00a0\u00a0\u00a0<\/p>\n<p>This discussion makes the distinction inside the Fourth Quadrant &#8230;<\/p>\n","protected":false},"author":14,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,445,73],"tags":[],"class_list":["post-2392","post","type-post","status-publish","format-standard","hentry","category-feeds","category-papers","category-pdf"],"_links":{"self":[{"href":"https:\/\/www.blackswanreport.com\/blog\/wp-json\/wp\/v2\/posts\/2392","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.blackswanreport.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.blackswanreport.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.blackswanreport.com\/blog\/wp-json\/wp\/v2\/users\/14"}],"replies":[{"embeddable":true,"href":"https:\/\/www.blackswanreport.com\/blog\/wp-json\/wp\/v2\/comments?post=2392"}],"version-history":[{"count":1,"href":"https:\/\/www.blackswanreport.com\/blog\/wp-json\/wp\/v2\/posts\/2392\/revisions"}],"predecessor-version":[{"id":3659,"href":"https:\/\/www.blackswanreport.com\/blog\/wp-json\/wp\/v2\/posts\/2392\/revisions\/3659"}],"wp:attachment":[{"href":"https:\/\/www.blackswanreport.com\/blog\/wp-json\/wp\/v2\/media?parent=2392"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.blackswanreport.com\/blog\/wp-json\/wp\/v2\/categories?post=2392"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.blackswanreport.com\/blog\/wp-json\/wp\/v2\/tags?post=2392"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}