{"id":66073,"date":"2026-05-11T15:18:22","date_gmt":"2026-05-11T13:18:22","guid":{"rendered":"https:\/\/fnege-medias.fr\/fnege-video\/what-is-the-informational-efficiency-of-financial-markets\/"},"modified":"2026-05-11T15:21:44","modified_gmt":"2026-05-11T13:21:44","slug":"what-is-the-informational-efficiency-of-financial-markets","status":"publish","type":"video-acf","link":"https:\/\/fnege-medias.fr\/en\/fnege-video\/what-is-the-informational-efficiency-of-financial-markets\/","title":{"rendered":"What is the informational efficiency of financial markets?"},"content":{"rendered":"<p>An efficient market is one in which the price of financial securities reflects all relevant information available at any given time.<\/p>\n<p>There are three degrees of efficiency, based on (1) the ability to predict future prices, (2) the market&#8217;s response to specific events, and (3) the influence of inside information on the market.<br \/>\nInformational efficiency is the most thoroughly tested hypothesis in finance.<br \/>\n&#8220;Anomalies&#8221; challenge the informational efficiency of financial markets.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>An efficient market is one in which the price of financial securities reflects all relevant information available at any given time.<\/p>\n<p>There are three degrees of efficiency, based on (1) the ability to predict future prices, (2) the market&#8217;s response to specific events, and (3) the influence of inside information on the market.<br \/>\nInformational efficiency is the most thoroughly tested hypothesis in finance.<br \/>\n&#8220;Anomalies&#8221; challenge the informational efficiency of financial markets.<\/p>\n","protected":false},"featured_media":66070,"template":"","format":[11959],"meta":{"_acf_changed":false},"categories":[3148],"tags":[12323,12324,11361,12325],"class_list":["post-66073","video-acf","type-video-acf","status-publish","has-post-thumbnail","hentry","category-corporate-and-market-finance","tag-anomalies","tag-event-studies","tag-financial-markets-en","tag-information-efficiency","format-management-dictionary"],"acf":[],"_links":{"self":[{"href":"https:\/\/fnege-medias.fr\/en\/wp-json\/wp\/v2\/video-acf\/66073","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fnege-medias.fr\/en\/wp-json\/wp\/v2\/video-acf"}],"about":[{"href":"https:\/\/fnege-medias.fr\/en\/wp-json\/wp\/v2\/types\/video-acf"}],"version-history":[{"count":2,"href":"https:\/\/fnege-medias.fr\/en\/wp-json\/wp\/v2\/video-acf\/66073\/revisions"}],"predecessor-version":[{"id":66079,"href":"https:\/\/fnege-medias.fr\/en\/wp-json\/wp\/v2\/video-acf\/66073\/revisions\/66079"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/fnege-medias.fr\/en\/wp-json\/wp\/v2\/media\/66070"}],"wp:attachment":[{"href":"https:\/\/fnege-medias.fr\/en\/wp-json\/wp\/v2\/media?parent=66073"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fnege-medias.fr\/en\/wp-json\/wp\/v2\/categories?post=66073"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fnege-medias.fr\/en\/wp-json\/wp\/v2\/tags?post=66073"},{"taxonomy":"format","embeddable":true,"href":"https:\/\/fnege-medias.fr\/en\/wp-json\/wp\/v2\/format?post=66073"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}