…As observed by Gabrielle Kaufmann-Kohler, whereas to treaty amendment principle of non-retroactivity applies as the amendment creates a new norm, it does not apply to treaty interpretation because a true…

…which arbitral tribunals enjoy at the interpretation stage is a function of particular treaty language. It is true that open-ended standards provide tribunals with more flexibility than rules specifying in…

arbitration claims using UNCITRAL rules, or the possibility of using the Additional Facility Rules of ICSID, and even ICC arbitration. Among the arbitration claims filed against Bolivia after the denunciation…