TTIP – Panel 3 - BITs and Applicable International Law in ISDS

TTIP – Panel 3 - BITs and Applicable International Law in ISDS

🎙 Max Planck Institute Luxembourg for Procedural Law 👥 1K 📅 February 1, 2016 ⏱ 49 min 👁 520 📄 expert opinion 🧭 2026-08-25
Available in: English (current) Français

Keywords

applicable lawICSID ConventionEU proposaldomestic lawinternational law

Summary

This panel discussion, part of a conference on the TTIP, focuses on the role of applicable international law in investor-state dispute settlement (ISDS). Professor Laurence Boisson de Chazournes presents a detailed analysis of the scenarios in which international law applies, from BITs with choice-of-law clauses to treaties without them. She highlights the supplementary role of international law even when domestic law is chosen, and discusses the sources of international law, including customary law, general principles, and soft law. The EU proposal for a permanent investment court is examined, noting its emphasis on international law and the exclusion of domestic law as applicable law, though domestic law remains relevant as a fact. Professor Giorgio Sacerdoti offers a commentary, drawing on his experience with the WTO Appellate Body, to discuss the treatment of domestic law in international tribunals. He argues that domestic law is residual and serves as evidence of compliance with international standards. The panel concludes that while international law is gaining primacy, domestic law retains an important role in the interpretation of standards and the assessment of state conduct.

179 words

Critical Evaluation

Value of the Information & Strength of the Argument

The value of the information is high, providing a comprehensive and nuanced overview of the applicable law in ISDS. The argumentation is solid, grounded in legal doctrine, treaty provisions, and case law. The speakers present a balanced view, acknowledging the increasing role of international law while emphasizing the continued relevance of domestic law. The discussion of the EU proposal is particularly insightful, highlighting its innovative aspects and potential implications.

Scientific Rigor, Source Quality, Title Accuracy

The scientific rigor is high, with references to key legal instruments (ICSID Convention, NAFTA, Energy Charter Treaty) and case law (e.g., Glamis, Grand River). The sources are credible, coming from established legal experts and institutions. The title accurately reflects the content, focusing on BITs and applicable international law in ISDS. The discussion is well-structured and adheres to academic standards.

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Title / Content Match

The title accurately reflects the panel's focus on bilateral investment treaties and the applicable international law in investor-state dispute settlement.

Quality & Reliability

8/10

High-level academic panel with renowned experts in international law, providing a rigorous analysis of applicable law in investment arbitration. The discussion is well-structured, references key legal instruments (ICSID Convention, NAFTA, ECT) and case law, and offers a balanced view on the role of domestic and international law.

Key Moments

Cited Sources

Concurring Sources

  • ICSID Convention — Referenced as the basis for arbitration, particularly Article 42 on applicable law.
  • NAFTA — Mentioned as a treaty that explicitly applies international law.
  • Energy Charter Treaty — Referenced as a multilateral treaty that applies international law.

Contribution & Novelties

The panel provides a clear and structured analysis of the applicable law in ISDS, particularly in light of the EU’s proposal for a permanent investment court. It highlights the trend towards the primacy of international law while emphasizing the continued relevance of domestic law as a fact and for interpreting standards. The discussion offers a balanced perspective, drawing on the experience of the WTO Appellate Body.

Pour aller plus loin :

120 words

Radar Profile

The radar profile shows high scores in information quality and technical level, reflecting the expert nature of the panel. The quantity of information is also high, but the global reliability is slightly lower, possibly due to the lack of formal citations and the discussion format.

Reliability 8/10