There is little doubt that res iudicata is a general principle of law. But its application in investment treaty arbitration remains varied. A recent fracture in the case law of investment tribunals concerns the apparent dilemma of the res iudicata effect, if any, of interlocutory, i.e. pre-award, decisions rendered under the ICSID Convention. The article explores res iudicata and its scope in light of the formal distinction between awards and decisions under the ICSID Convention. It engages critically with the relevant case law and argues that, in contrast to awards, decisions do not carry res iudicata effect. But the absence of res iudicata does not mean that the reopening of a decision is always justified and special regard must be had to the specific circumstances.

中文翻译：

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Res Iudicata和《国际投资争端解决中心公约》下的中间裁决：法庭复审权的对立

毫无疑问，res iudicata是法律的一般原则。但是它在投资条约仲裁中的应用仍然多种多样。投资法庭判例法最近的破裂涉及根据《国际投资争端解决中心公约》做出的中间裁决（即预先裁决）的裁决结果的明显困境（如果有的话）。本文根据《国际投资争端解决中心公约》（ICSID Convention）的裁决与决定之间的形式区别，探讨了RESUudicata及其范围。它与相关的判例法密切相关，并认为与裁决相反，决策不具有审讯效力。但是，如果没有裁定，就意味着重新启动一项决定总是有道理的，必须特别注意具体情况。