In 2011, 46 known investment treaty cases were filed under international investment agreements, the highest ever known in one year.
The total of known investment treaty-based cases reached 450 in 2011.
89 countries have now responded to one or more investment treaty arbitrations.
The Issues Note also provides an overview of substantive and procedural issues addressed in the 2011 decisions, including the definition of "investment", the interpretation of Most Favoured Nation (MFN) clauses and the application of the fair and equitable treatment standard.