The international law of foreign investment is one of the fastest growing areas of international economic law and policy which increasingly rely on large membership investment treaties such as the ASEAN Comprehensive Investment Agreement (ACIA). This book comprehensively examines the role of this specific international treaty on investment and situates it in the wider global trend towards the regionalisation of laws and policy on foreign investment. Considering the state of the ASEAN Economic Community in 2015 and its transformation until 2025, Julien Chaisse and Sufian Jusoh illustrate the...