{"id":4196,"date":"2026-02-18T11:45:48","date_gmt":"2026-02-18T10:45:48","guid":{"rendered":"https:\/\/www.aucoffre.com\/academie\/?p=4196"},"modified":"2026-02-18T17:06:07","modified_gmt":"2026-02-18T16:06:07","slug":"ratio-or-argent-indicateur","status":"publish","type":"post","link":"https:\/\/www.aucoffre.com\/academie\/ratio-or-argent-indicateur\/","title":{"rendered":"Ratio or\/argent : d\u00e9finition, histoire et r\u00f4le sur les march\u00e9s"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Le ratio or\/argent d\u00e9signe le nombre d\u2019onces d\u2019argent n\u00e9cessaires pour acheter une once d\u2019or. Cet indicateur ancien permet de comparer la valeur relative des deux principaux m\u00e9taux pr\u00e9cieux. Utilis\u00e9 depuis l\u2019Antiquit\u00e9, il reste aujourd\u2019hui un rep\u00e8re suivi par les investisseurs, les analystes et les historiens mon\u00e9taires.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Lorsque le ratio or\/argent est \u00e0 60 comme en f\u00e9vrier 2026, cela signifie qu\u2019il faut 60 onces d\u2019argent pour obtenir 1 once d\u2019or. Le ratio \u00e9volue en permanence selon les cours des deux m\u00e9taux.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Ce qu&rsquo;il faut retenir&nbsp;<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">&#8211; Le ratio or\/argent est utilis\u00e9 comme r\u00e9f\u00e9rence depuis l\u2019Antiquit\u00e9. C\u2019est toujours un indicateur pour les investisseurs dans les m\u00e9taux pr\u00e9cieux.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&#8211; Les records r\u00e9cents du ratio or\/argent&nbsp;: 118 en 2020 et 14 au plus fort de la sp\u00e9culation des fr\u00e8res Hunt, dans les ann\u00e9es 1980.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&#8211; Le ratio or\/argent est stabilis\u00e9 autour de 1\/60 fin janvier 2026.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">D\u00e9finition du ratio or\/argent<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Avant d\u2019analyser son \u00e9volution historique, il est essentiel de comprendre ce que mesure pr\u00e9cis\u00e9ment le ratio or\/argent. Cela constitue un indicateur pertinent pour comparer l\u2019or et l\u2019argent sans regarder le prix des deux m\u00e9taux en valeur absolue. Les questions comme&nbsp;\u201cl\u2019or est-il trop cher\u201d, ou \u201cl\u2019argent est-il trop cher\u201d ne se posent plus. Voici son mode de calcul.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Formule de calcul<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Le ratio or\/argent se calcule ainsi :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ratio or\/argent = Prix d\u2019une once d\u2019or \/ Prix d\u2019une once d\u2019argent<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Si l\u2019or vaut 4&nbsp;150 dollars et l\u2019argent 60 dollars, le ratio est de 1\/79.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Une hausse du ratio signifie que l\u2019or progresse plus vite que l\u2019argent ou que l\u2019argent recule davantage. Une baisse traduit une surperformance de l\u2019argent.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Pourquoi cet indicateur est-il pertinent ?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Le ratio or\/argent offre une lecture relative. Il neutralise l\u2019effet devise et l\u2019inflation mon\u00e9taire pour isoler le rapport de force entre les deux m\u00e9taux pr\u00e9cieux. Il permet ainsi d\u2019\u00e9viter une analyse fond\u00e9e uniquement sur le prix nominal.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Histoire et \u00e9volution du ratio or\/argent<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Le ratio or\/argent trouve son origine dans les premiers syst\u00e8mes mon\u00e9taires m\u00e9talliques. Depuis l\u2019Antiquit\u00e9 jusqu\u2019aux march\u00e9s contemporains, en passant par le bim\u00e9tallisme et la fin de l\u2019\u00e9talon-or, le ratio or\/argent est souvent cit\u00e9 comme une r\u00e9f\u00e9rence. Mais surtout, des investisseurs, des analystes et des \u00e9conomistes voudraient que le ratio de 1\/15 indique l\u2019\u00e9quilibre id\u00e9al entre la valeur de l\u2019or et de l\u2019argent. Une affirmation qui repose sur l\u2019histoire mon\u00e9taire.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"2400\" height=\"1200\" src=\"https:\/\/www.aucoffre.com\/academie\/wp-content\/uploads\/sites\/9\/2026\/02\/ratio_or-argent-1997-2026-2.png\" alt=\"\" class=\"wp-image-4214\" style=\"width:919px;height:auto\" srcset=\"https:\/\/www.aucoffre.com\/academie\/wp-content\/uploads\/sites\/9\/2026\/02\/ratio_or-argent-1997-2026-2.png 2400w, https:\/\/www.aucoffre.com\/academie\/wp-content\/uploads\/sites\/9\/2026\/02\/ratio_or-argent-1997-2026-2-300x150.png 300w, https:\/\/www.aucoffre.com\/academie\/wp-content\/uploads\/sites\/9\/2026\/02\/ratio_or-argent-1997-2026-2-1024x512.png 1024w, https:\/\/www.aucoffre.com\/academie\/wp-content\/uploads\/sites\/9\/2026\/02\/ratio_or-argent-1997-2026-2-768x384.png 768w, https:\/\/www.aucoffre.com\/academie\/wp-content\/uploads\/sites\/9\/2026\/02\/ratio_or-argent-1997-2026-2-1536x768.png 1536w, https:\/\/www.aucoffre.com\/academie\/wp-content\/uploads\/sites\/9\/2026\/02\/ratio_or-argent-1997-2026-2-2048x1024.png 2048w, https:\/\/www.aucoffre.com\/academie\/wp-content\/uploads\/sites\/9\/2026\/02\/ratio_or-argent-1997-2026-2-360x180.png 360w, https:\/\/www.aucoffre.com\/academie\/wp-content\/uploads\/sites\/9\/2026\/02\/ratio_or-argent-1997-2026-2-750x375.png 750w, https:\/\/www.aucoffre.com\/academie\/wp-content\/uploads\/sites\/9\/2026\/02\/ratio_or-argent-1997-2026-2-1140x570.png 1140w\" sizes=\"(max-width: 2400px) 100vw, 2400px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Antiquit\u00e9 : un ratio fond\u00e9 sur la raret\u00e9<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Rome et la Chine imp\u00e9riale<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Dans l\u2019Empire romain, le ratio se situe g\u00e9n\u00e9ralement entre 1\/12 et 1\/14. En Chine imp\u00e9riale, il \u00e9volue dans des proportions proches. Ce niveau refl\u00e8te la raret\u00e9 relative et les volumes extraits.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L\u2019argent circule largement dans les \u00e9changes quotidiens. L\u2019or conserve un r\u00f4le de r\u00e9serve de richesse.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Un ratio souvent fix\u00e9 par le pouvoir<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Le pouvoir politique d\u00e9termine fr\u00e9quemment un rapport officiel afin d\u2019assurer la stabilit\u00e9 du syst\u00e8me mon\u00e9taire.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">XIX\u1d49 si\u00e8cle : l\u2019\u00e8re du bim\u00e9tallisme<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Le franc germinal et le ratio de 1\/15,5<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">En France, la loi du 7 germinal an XI (1803), sous Napol\u00e9on Bonaparte, fixe le ratio \u00e0 1 pour 15,5. Ce cadre devient une r\u00e9f\u00e9rence majeure du XIX\u1d49 si\u00e8cle. Ce ratio est toujours \u00e9voqu\u00e9 (ou fantasm\u00e9) aujourd\u2019hui.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">&nbsp;Les \u00c9tats-Unis et l\u2019ajustement du ratio<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Le Coinage Act de 1792 \u00e9tablit un ratio de 1\/15. En 1834, il est modifi\u00e9 \u00e0 1\/16 afin de corriger un \u00e9cart entre la loi et les conditions de march\u00e9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Lorsque le ratio l\u00e9gal diverge du ratio r\u00e9el, le m\u00e9tal sous-\u00e9valu\u00e9 dispara\u00eet de la circulation. C\u2019est la loi de Gresham. Ce ph\u00e9nom\u00e8ne affaiblit progressivement le bim\u00e9tallisme.<\/p>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<h4 class=\"wp-block-heading\">La loi de Gresham : \u201cla mauvaise monnaie chasse la bonne\u201d<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">La loi de Gresham est un principe mon\u00e9taire formul\u00e9 au XVI\u1d49 si\u00e8cle par l\u2019\u00e9conomiste anglais Thomas Gresham. Lorsque deux monnaies ayant la m\u00eame valeur faciale circulent simultan\u00e9ment, la monnaie sur\u00e9valu\u00e9e chasse la monnaie sous-\u00e9valu\u00e9e.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>La Loi de Gresham appliqu\u00e9e au ratio or\/argent<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Par exemple,&nbsp;l\u2019\u00c9tat fixe un ratio de 1 pour 15&nbsp;mais le march\u00e9 valorise en r\u00e9alit\u00e9 l\u2019or \u00e0 1 pour 16.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L\u2019or est donc sous-\u00e9valu\u00e9. Toute le monde a int\u00e9r\u00eat \u00e0 conserver ou exporter l\u2019or, et <a href=\"https:\/\/www.aucoffre.com\/academie\/bimetallisme-france-pieces-argent\/\">\u00e0 r\u00e9gler les transactions en argent<\/a>. R\u00e9sultat : l\u2019or dispara\u00eet progressivement de la circulation.<\/p>\n<\/blockquote>\n<\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Fin du XIX\u1d49 si\u00e8cle : domination de l\u2019or<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">L\u2019or devient l\u2019unique r\u00e9f\u00e9rence mon\u00e9taire internationale. L\u2019argent perd son r\u00f4le central. Le ratio or\/argent cesse d\u2019\u00eatre administr\u00e9 par la loi et d\u00e9pend d\u00e9sormais du march\u00e9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Au d\u00e9but du XX\u1d49 si\u00e8cle, il \u00e9volue autour de 1\/20 \u00e0 1\/30.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">XX\u1d49 si\u00e8cle jusqu\u2019\u00e0 nos jours&nbsp;: le ratio or\/argent est volatil<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">1944\u20131971 : Bretton Woods<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Sous Bretton Woods, l\u2019or reste fix\u00e9 \u00e0 35 dollars l\u2019once. Le ratio oscille souvent entre 1\/20 et 1\/40.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">1971 : fin de la convertibilit\u00e9 du dollar<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">La fin de la convertibilit\u00e9 en or marque le d\u00e9but d\u2019un r\u00e9gime de prix flottants. Le ratio or\/argent entre dans une phase de volatilit\u00e9 accrue.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">1980 : la sp\u00e9culation sur l\u2019argent<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Les fr\u00e8res Hunt tentent de contr\u00f4ler le march\u00e9 de l\u2019argent. Le prix du m\u00e9tal blanc explose. Le ratio chute vers 1\/14. La fin de l\u2019<a href=\"https:\/\/www.aucoffre.com\/academie\/largent-metal-nourrit-les-fantasmes-des-investisseurs\/\">op\u00e9ration de sp\u00e9culation<\/a> des fr\u00e8res Hunt provoque une remont\u00e9e du ratio.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Ann\u00e9es 1990 : d\u00e9sint\u00e9r\u00eat pour l\u2019argent<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">L\u2019argent traverse une p\u00e9riode de faiblesse prolong\u00e9e. Le ratio atteint environ 1\/100.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">2020 : record historique<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Lors de la crise sanitaire mondiale, le ratio or\/argent atteint 1\/118. L\u2019or attire les capitaux en tant que valeur refuge. L\u2019argent recule dans un contexte de confinement des industries (et des populations).<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">2025\u20132026 : compression du ratio<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Au deuxi\u00e8me semestre 2025, c\u2019est l\u2019envol\u00e9e des m\u00e9taux pr\u00e9cieux. Mais l\u2019argent progresse le plus vite et le plus fort. Le ratio descend vers environ 1\/45. D\u00e9but 2026, il \u00e9volue autour d\u20191\/60 \u00e0 1\/70.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">L\u2019\u00e9volution du ratio or\/argent depuis l\u2019antiquit\u00e9<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img decoding=\"async\" width=\"1024\" height=\"551\" src=\"https:\/\/www.aucoffre.com\/academie\/wp-content\/uploads\/sites\/9\/2026\/02\/tableau_ratio_or_argent_v3-1024x551.png\" alt=\"L'\u00e9volution du ratio or argent au fil des si\u00e8cles : niveau et raisons.\" class=\"wp-image-4200\" style=\"aspect-ratio:1.8584833882830332;width:888px;height:auto\" srcset=\"https:\/\/www.aucoffre.com\/academie\/wp-content\/uploads\/sites\/9\/2026\/02\/tableau_ratio_or_argent_v3-1024x551.png 1024w, https:\/\/www.aucoffre.com\/academie\/wp-content\/uploads\/sites\/9\/2026\/02\/tableau_ratio_or_argent_v3-300x162.png 300w, https:\/\/www.aucoffre.com\/academie\/wp-content\/uploads\/sites\/9\/2026\/02\/tableau_ratio_or_argent_v3-768x414.png 768w, https:\/\/www.aucoffre.com\/academie\/wp-content\/uploads\/sites\/9\/2026\/02\/tableau_ratio_or_argent_v3-1536x827.png 1536w, https:\/\/www.aucoffre.com\/academie\/wp-content\/uploads\/sites\/9\/2026\/02\/tableau_ratio_or_argent_v3-2048x1103.png 2048w, https:\/\/www.aucoffre.com\/academie\/wp-content\/uploads\/sites\/9\/2026\/02\/tableau_ratio_or_argent_v3-750x404.png 750w, https:\/\/www.aucoffre.com\/academie\/wp-content\/uploads\/sites\/9\/2026\/02\/tableau_ratio_or_argent_v3-1140x614.png 1140w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Production mini\u00e8re actuelle et ratio or\/argent (2026)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La production mondiale annuelle d\u2019or est d\u2019environ 3&nbsp;300 tonnes d\u2019or et de 25&nbsp;800 tonnes d\u2019argent. Le rapport \u00ab&nbsp;industriel&nbsp;\u00bb d\u2019extraction est donc de 1\/7,5. Le ratio de march\u00e9 se situe autour de 1\/65.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Autant dire que la r\u00e9f\u00e9rence \u00e0 la production de m\u00e9tal pour \u00e9tablir les prix de l\u2019or et de l\u2019argent m\u00e9tal est inexistante. Le cours des m\u00e9taux pr\u00e9cieux en 2026 d\u00e9pend largement des flux financiers, ainsi que des \u00e9v\u00e9nements g\u00e9opolitiques et \u00e9conomiques.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Pourquoi le ratio or\/argent reste sup\u00e9rieur au niveau historique<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">L\u2019or conserve un r\u00f4le strat\u00e9gique dans les r\u00e9serves des banques centrales. Il sert de protection contre les crises mon\u00e9taires.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L\u2019argent d\u00e9pend davantage de la demande industrielle, notamment dans l\u2019\u00e9lectronique, le d\u00e9veloppement de l\u2019intelligence artificielle et le photovolta\u00efque. Son prix varie au gr\u00e9 de la sant\u00e9 \u00e9conomique des pays industriels. Quand le prix de l\u2019argent a \u00e9t\u00e9 en surchauffe en janvier 2026, c\u2019est la pression sp\u00e9culative qui est intervenue. Le ratio est alors tomb\u00e9 \u00e0 1\/45, un score jamais atteint depuis 15 ans. L\u2019usage est aussi diff\u00e9rent sur la circulation et le stockage. L\u2019or extrait reste majoritairement conserv\u00e9. Une part importante de l\u2019argent est consomm\u00e9e dans l\u2019industrie.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Comment utiliser le ratio or\/argent en investissement<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Le ratio or\/argent constitue un outil d\u2019arbitrage. Il permet d\u2019ajuster une allocation entre or et argent sans quitter l\u2019univers des m\u00e9taux pr\u00e9cieux.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Un ratio \u00e9lev\u00e9 peut sugg\u00e9rer que l\u2019argent para\u00eet sous-\u00e9valu\u00e9 par rapport \u00e0 l\u2019or. Un ratio bas peut indiquer l\u2019inverse.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Une nouvelle fois, il permet de prendre des d\u00e9cisions dans <a href=\"https:\/\/www.aucoffre.com\/cours-or?utm_source=academie&amp;utm_medium=article\" id=\"https:\/\/www.aucoffre.com\/cours-or?utm_source=academie&amp;utm_medium=article\">un contexte de prix de l\u2019or<\/a> et de l\u2019argent particuli\u00e8rement \u00e9lev\u00e9s.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ratio or\/argent et cycles \u00e9conomiques<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">En p\u00e9riode de crise, l\u2019or attire davantage de capitaux et le ratio augmente.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dans les phases de croissance ou de hausse des mati\u00e8res premi\u00e8res, <a href=\"https:\/\/www.aucoffre.com\/cours-argent?utm_source=loretlargent&amp;utm_medium=article\" id=\"https:\/\/www.aucoffre.com\/cours-argent?utm_source=loretlargent&amp;utm_medium=article\">l\u2019argent peut surperformer<\/a> et le ratio diminue. Le ratio or\/argent refl\u00e8te ainsi l\u2019\u00e9volution du syst\u00e8me mon\u00e9taire, les cycles \u00e9conomiques et la perception du risque mondial.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le ratio or\/argent d\u00e9signe le nombre d\u2019onces d\u2019argent n\u00e9cessaires pour acheter une once d\u2019or. Cet indicateur ancien permet de comparer la valeur relative des deux principaux m\u00e9taux pr\u00e9cieux.<\/p>\n","protected":false},"author":21,"featured_media":4203,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"content-type":"","jnews-multi-image_gallery":[],"jnews_single_post":{"subtitle":"","format":"standard","video":"","gallery":"","source_name":"","source_url":"","via_name":"","via_url":"","override_template":"0","override":[{"template":"8","single_blog_custom":"","parallax":"1","fullscreen":"0","layout":"no-sidebar-narrow","sidebar":"default-sidebar","second_sidebar":"default-sidebar","sticky_sidebar":"1","share_position":"bottom","share_float_style":"share-monocrhome","show_share_counter":"1","show_view_counter":"1","show_featured":"1","show_post_meta":"1","show_post_author":"0","show_post_author_image":"1","show_post_date":"1","post_date_format":"default","post_date_format_custom":"Y\/m\/d","show_post_category":"1","show_post_reading_time":"1","post_reading_time_wpm":"300","show_zoom_button":"0","zoom_button_out_step":"2","zoom_button_in_step":"3","show_post_tag":"1","show_prev_next_post":"1","show_popup_post":"1","number_popup_post":"2","show_author_box":"1","show_post_related":"1","show_inline_post_related":"0"}],"override_image_size":"0","image_override":[{"single_post_thumbnail_size":"crop-500","single_post_gallery_size":"crop-500"}],"trending_post":"0","trending_post_position":"meta","trending_post_label":"Trending","sponsored_post":"0","sponsored_post_label":"Sponsored by","sponsored_post_name":"","sponsored_post_url":"","sponsored_post_logo_enable":"0","sponsored_post_logo":"","sponsored_post_desc":"","disable_ad":"0"},"jnews_primary_category":{"id":"","hide":""},"jnews_social_meta":{"fb_title":"","fb_description":"","fb_image":"","twitter_title":"","twitter_description":"","twitter_image":""},"jnews_override_counter":{"override_view_counter":"0","view_counter_number":"0","override_share_counter":"0","share_counter_number":"0","override_like_counter":"0","like_counter_number":"0","override_dislike_counter":"0","dislike_counter_number":"0"},"footnotes":""},"categories":[80],"tags":[84,97,83],"niveau":[],"class_list":["post-4196","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-univers-metaux-precieux","tag-argent","tag-histoire","tag-or"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ratio or\/argent : d\u00e9finition, histoire et r\u00f4le sur les march\u00e9s - L&#039;acad\u00e9mie AuCOFFRE<\/title>\n<meta name=\"description\" content=\"Le ratio or\/argent d\u00e9signe le nombre d\u2019onces d\u2019argent n\u00e9cessaires pour acheter une once d\u2019or. 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