Building on existing analytical frameworks, this book provides a new methodology allowing different language policies in international multilingual organisations (or "language regimes") to be compared and evaluated on the basis of criteria such as efficiency and fairness. It explains step-by-step how to organise the evaluation of language regimes and how to design and interpret indicators for such evaluation. The second part of this book applies the theoretical framework to the evaluation of the language policy of the Patent Cooperation Treaty (PCT) division of the World Intellectual Property...