This book provides a comprehensive account of the CETA Investment Chapter’s ability to overcome the legitimacy crisis facing investment arbitration. To do so, it first examines the root causes behind the legitimacy crisis, ultimately arguing that it reflects a fundamental rule of law crisis within investment arbitration. In particular, it asserts that the normative standpoints of the legitimacy crisis form part of the rule of law, the uniting legal principle from which the legitimacy concerns stem. The book contends that the rule of law is not only the principal normative and causal...