This article is originally from The American Review of International Arbitration (ARIA)

PREVIEW

I.   INTRODUCTION

Investor-State dispute settlement (“ISDS”) often proceeds from a simple premise: the treaty party that adopted the contested measure will appear as respondent and will carry the immediate financial exposure. Disputes tied to the European Union (the “EU” or “Union”) complicate that premise. Claimants bring cases against EU Member States (“Member States”) under pre-existing investment treaties, yet the measure at issue may give effect to a binding Union rule and leave little or no national choice. The tribunal must then confront attribution and respondent identity under the treaty, even though EU internal arrangements on cost allocation sit outside the tribunal’s sources of law. The result can be a split track, with the merits fought in arbitration and later disputes in national courts over payment and enforcement.

   The premise breaks down in the EU because competence and treaty coverage do not line up. After the Lisbon Treaty in 2009, the EU gained exclusive competence over FDI.   That change gave the EU a treaty conclusion role in investment, yet it left open who answers in ISDS when a Member State measure gives effect to EU law. Authority moved toward the Commission, but a clear rule on awards and costs between the European Commission (“Commission”) and Member States still does not exist. Foreign investment can support growth, the internal market, and the EU position in trade and finance. That case for openness now sits beside uncertainty on financial responsibility in ISDS.

The central question left open after Lisbon is the article’s legal problem, and it sits at the junction between attribution and public finance in ISDS. The problem surfaces when a foreign investor challenges a national measure that implements binding EU law and leaves little or no national discretion. In that setting, EU secondary law can allocate costs internally between Brussels and a Member State, but arbitral tribunals apply the treaty before them and public international law standards on attribution. The internal allocation rules do not bind the tribunal. This produces a recurring mismatch between the legal source of the contested measure and the identity of the respondent that carries the defence, controls settlement, and faces enforcement risk. The sections that follow unpack that mismatch and then test it against the Union’s internal responsibility rules and recent arbitral and court practice.

[...]

The article proceeds in a sequence that follows the legal problem from source to consequence. Section 2 traces how the attribution question arose and why cost apportionment, on its own, cannot settle responsibility as between the Union and its Member States. Section 3 then sets out the Union’s internal allocation rules in three parts: responsibility for acts of EU institutions, the conditions under which Union responsibility may be engaged by Member State conduct, and the payment and reimbursement mechanics for awards and procedure. Section 4 applies those rules to practice through four clusters of disputes: the continuing pattern of Member States as respondents, the Spain energy reform cases, the Nord Stream 2 dispute tied to the Gas Directive amendment, and disputes connected to measures by the European Central Bank. Section 5 draws the implications for future design choices, with attention to the post Energy Charter Treaty position and current reform efforts in investment dispute settlement.