{"id":6714,"date":"2017-03-13T11:07:39","date_gmt":"2017-03-13T16:07:39","guid":{"rendered":"https:\/\/iisd.org\/itn\/?p=6714"},"modified":"2024-08-09T18:27:31","modified_gmt":"2024-08-09T16:27:31","slug":"the-most-favoured-nation-clause-in-investment-treaties","status":"publish","type":"post","link":"https:\/\/www.iisd.org\/itn\/2017\/03\/13\/the-most-favoured-nation-clause-in-investment-treaties\/","title":{"rendered":"The Most-Favoured-Nation Clause in Investment Treaties"},"content":{"rendered":"<p><em>By Suzy H. Niki\u00e8ma, Published by <span class='tooltipsall tooltipsincontent classtoolTips32'>IISD<\/span>, February 2017<\/em><\/p>\n<p>Most-favoured nation (<span class='tooltipsall tooltipsincontent classtoolTips75'>MFN<\/span>) is a both common and controversial clause in investment treaties. It has been the object of differing and unexpected interpretations by treaty-based arbitral tribunals. In particular, since <em>Maffezini v. Spain<\/em>, an original interpretation of MFN led to the possibility for investors to import more favourable provisions from a third-party bilateral investment treaty (<span class='tooltipsall tooltipsincontent classtoolTips63'>BIT<\/span>) concluded by their host state. The controversies around MFN raise fundamental questions in the context of current changes in the international investment law and arbitration regime. Part of <a href=\"http:\/\/www.iisd.org\/project\/investment-policy-best-practices-advisory-bulletins\">IISD\u2019s Best Practices Series<\/a>, this study conducts a typology of investment treaties and then an analysis of the differing interpretations by the tribunals of several key issues.\u00a0The issues surrounding certain interpretations of the MFN clause and the reactions of states in their recent treaties are reviewed in order to draw lessons for states. Available in English and French at <a href=\"http:\/\/www.iisd.org\/library\/iisd-best-practices-series-most-favoured-nation-clause-investment-treaties\">http:\/\/www.<span class='tooltipsall tooltipsincontent classtoolTips33'>IISD<\/span>.org\/library\/<span class='tooltipsall tooltipsincontent classtoolTips34'>IISD<\/span>-best-practices-series-most-favoured-nation-clause-investment-treaties<\/a>.<\/p>\n<h3><\/h3>\n<p><!--more--><\/p>\n<script type=\"text\/javascript\"> toolTips('.classtoolTips32','International Institute for Sustainable Development<!--more-->'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips33','Institut international du d\u00e9veloppement durable'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips34','Instituto Internacional para el Desarrollo Sostenible'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips63','Bilateral investment treaty'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips65','East African community'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips67','Energy Charter Treaty'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips75','most-favoured nation'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips104','responsabilit\u00e9 sociale des entreprises'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips114','Sistema de Tribunales de Inversiones'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips116','European Commission'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips118','Union europ\u00e9enne'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips119','Uni\u00f3n Europea'); <\/script>","protected":false},"excerpt":{"rendered":"<p>Part of <span class='tooltipsall tooltipsincontent classtoolTips32'>IISD<\/span>\u2019s Best Practices Series, this study conducts a typology of investment treaties and then an analysis of the differing interpretations by the tribunals of several key issues<script type=\"text\/javascript\"> toolTips('.classtoolTips32','International Institute for Sustainable Development<!--more-->'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips33','Institut international du d\u00e9veloppement durable'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips34','Instituto Internacional para el Desarrollo Sostenible'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips118','Union europ\u00e9enne'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips119','Uni\u00f3n Europea'); <\/script><\/p>\n","protected":false},"author":1,"featured_media":15869,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[417],"tags":[1981],"class_list":["post-6714","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-resources","tag-most-favoured-nation-treatment-mfn"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.iisd.org\/itn\/wp-json\/wp\/v2\/posts\/6714","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.iisd.org\/itn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.iisd.org\/itn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.iisd.org\/itn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.iisd.org\/itn\/wp-json\/wp\/v2\/comments?post=6714"}],"version-history":[{"count":0,"href":"https:\/\/www.iisd.org\/itn\/wp-json\/wp\/v2\/posts\/6714\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.iisd.org\/itn\/wp-json\/wp\/v2\/media\/15869"}],"wp:attachment":[{"href":"https:\/\/www.iisd.org\/itn\/wp-json\/wp\/v2\/media?parent=6714"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.iisd.org\/itn\/wp-json\/wp\/v2\/categories?post=6714"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.iisd.org\/itn\/wp-json\/wp\/v2\/tags?post=6714"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}