Amicus Curiae: Investment Arbitration

Abstract

This entry will systematise the law and practice of amicus curiae in international investment arbitration. The first section will briefly depict the evolution of amicus curiae interventions in international investment arbitration. The second section will frame the development of accepting the submission by non-disputing parties of briefs in the general move to transparency in international investment arbitration. The third and fourth sections will address rules on amicus curiae in international investment treaties, and in arbitration rules respectively. The fifth section will look at the common requirements for amicus submissions between these different instruments. The sixth and final section will look at the practice of arbitral tribunals.