{"id":2139,"date":"2012-02-20T22:16:36","date_gmt":"2012-02-20T21:16:36","guid":{"rendered":"http:\/\/blocs.xtec.cat\/lboix\/?p=2139"},"modified":"2020-04-22T22:27:03","modified_gmt":"2020-04-22T20:27:03","slug":"una-equacio-culpable-de-la-crisis","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/sesernestlluch-cunit\/general\/una-equacio-culpable-de-la-crisis\/","title":{"rendered":"Una equaci\u00f3 culpable de la crisis"},"content":{"rendered":"<p>Llegiu aquesta entrevista al matem\u00e0tic i divulgador Ian Stewart on explica com l&#8217;equaci\u00f3 de Black-Scholes que s&#8217;utilitza per controlar derivats financers. Despr\u00e9s de llegir l&#8217;article ja valorareu si les matem\u00e0tiques s\u00f3n les responsables de l&#8217;actual crisi financera o no.<\/p>\n<p>Equaci\u00f3 de Black-Scholes<\/p>\n<dl>\n<dd><img decoding=\"async\" src=\"http:\/\/upload.wikimedia.org\/wikipedia\/es\/math\/0\/5\/4\/054f1cd42c1846fae9ae474c2f6aceea.png\" alt=\" C = S N(d_i) - Ke^{-rdT}N(d_z) \\, \" \/><\/dd>\n<\/dl>\n<dl>\n<dd><img decoding=\"async\" src=\"http:\/\/upload.wikimedia.org\/wikipedia\/es\/math\/3\/2\/c\/32cdc17f6eaf8923a0f5ba3b5f89947a.png\" alt=\" P = K e^{-rdT}N(-d_z) - S N(-d_i) \\, \" \/><\/dd>\n<\/dl>\n<p>on<\/p>\n<p>&nbsp;<\/p>\n<dl>\n<dd><img decoding=\"async\" src=\"http:\/\/upload.wikimedia.org\/wikipedia\/es\/math\/a\/7\/8\/a78cbbaddbc5636dfcfb7f8ce02f8eab.png\" alt=\" d_i = \\frac{\\ln(S\/K) + (rd -re + \\sigma^2\/2) T}{\\sigma\\sqrt{T}} \" \/><\/dd>\n<\/dl>\n<dl>\n<dd><img decoding=\"async\" src=\"http:\/\/upload.wikimedia.org\/wikipedia\/es\/math\/5\/2\/9\/5296dfbf488bd3105b302e06aecd5039.png\" alt=\" d_z = d_i - \\sigma\\sqrt{T}. \" \/><\/dd>\n<dd> <\/dd>\n<dd><a href=\"http:\/\/www.lavanguardia.com\/economia\/20120217\/54255552033\/ecuacion-matematica-causo-derrumbe-sector-financiero.html\">Article de La Vanguardia.com<\/a> el dia 20\/02\/2012 <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>Llegiu aquesta entrevista al matem\u00e0tic i divulgador Ian Stewart on explica com l&#8217;equaci\u00f3 de Black-Scholes que s&#8217;utilitza per controlar derivats financers. Despr\u00e9s de llegir l&#8217;article ja valorareu si les matem\u00e0tiques s\u00f3n les responsables de l&#8217;actual crisi financera o no.<br \/>\nEquaci\u00f3 de Black-Scholes<\/p>\n<p>on<br \/>\n&nbsp;<\/p>\n<p><a href=\"http:\/\/www.lavanguardia.com\/economia\/20120217\/54255552033\/ecuacion-matematica-causo-derrumbe-sector-financiero.html\">Article de La&hellip;  <a href=\"https:\/\/agora.xtec.cat\/sesernestlluch-cunit\/general\/una-equacio-culpable-de-la-crisis\/\" title=\"Read Una equaci\u00f3 culpable de la crisis\">Llegeix m\u00e9s\u00bb<\/a><\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":""},"categories":[1,122],"tags":[],"class_list":["post-2139","post","type-post","status-publish","format-standard","hentry","category-general","category-mates"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/sesernestlluch-cunit\/wp-json\/wp\/v2\/posts\/2139","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/sesernestlluch-cunit\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/sesernestlluch-cunit\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/sesernestlluch-cunit\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/sesernestlluch-cunit\/wp-json\/wp\/v2\/comments?post=2139"}],"version-history":[{"count":1,"href":"https:\/\/agora.xtec.cat\/sesernestlluch-cunit\/wp-json\/wp\/v2\/posts\/2139\/revisions"}],"predecessor-version":[{"id":4693,"href":"https:\/\/agora.xtec.cat\/sesernestlluch-cunit\/wp-json\/wp\/v2\/posts\/2139\/revisions\/4693"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/sesernestlluch-cunit\/wp-json\/wp\/v2\/media?parent=2139"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/sesernestlluch-cunit\/wp-json\/wp\/v2\/categories?post=2139"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/sesernestlluch-cunit\/wp-json\/wp\/v2\/tags?post=2139"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}