Towards Greater Doctrinal Clarity in Investor-State Arbitration: The CMS, Sempra, and Enron Annulment Decisions

CZECH YEARBOOK OF INTERNATIONAL LAW, Vol. 2, p. 207, 2011

23 Pages Posted: 10 Oct 2010 Last revised: 24 Jul 2013

Multiple version iconThere are 2 versions of this paper

Date Written: December 6, 2010

Abstract

Several arbitral awards rendered against Argentina under bilateral investment treaties and related to the country's devastating economic crisis in 2001-2002 restrictively interpreted Argentina's ability to rely on either the exception clause in the US-Argentina investment treaty or the necessity defense under customary international law. In three cases (CMS, Sempra, and Enron), the tribunals, by simply equating the requirements under the treaty exception with those of the customary necessity defense, all but ignored established canons of treaty interpretation and engaged in doctrinally muddled analyses of the relationship between treaty law and customary law. All three awards have since been subject to annulment decisions by ICSID ad hoc committees. While the decisions disagree on what constitutes an appropriate reason for annulment under the manifest excess of powers ground, they offer doctrinally much improved approaches to the interpretation and application of both treaty exceptions and the necessity defense. Identifying the proper dividing line between permissible annulment review and impermissible appellate review in such contexts has been, and will remain, contentious, but the Sempra and Enron committees offer reasonable assessments of when an error of law becomes so grave as to result in actual failure to apply the proper law.

Keywords: Argentina, necessity, non-precluded measures, CMS, Enron, Sempra, annulment, manifest excess of powers, failure to apply the proper law, lex specialis

JEL Classification: K33

Suggested Citation

von Staden, Andreas, Towards Greater Doctrinal Clarity in Investor-State Arbitration: The CMS, Sempra, and Enron Annulment Decisions (December 6, 2010). CZECH YEARBOOK OF INTERNATIONAL LAW, Vol. 2, p. 207, 2011. Available at SSRN: https://ssrn.com/abstract=1689872

Andreas Von Staden (Contact Author)

Universit├Ąt Hamburg ( email )

Department of Social Sciences
Allende-Platz 1
Hamburg, Hamburg 20148
Germany

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