The book is a result of a research project conducted at the Department for Austrian and International Tax Law at the University of Economics and Business Administration in Vienna. The project's aim was to produce a draft multilateral tax treaty modelled on the OECD Model Income Tax Convention, whilst examining in detail difficulties that arise in connection with the multilateralisation of the OECD Model. The expert papers also present a detailed analysis of the arguments for and against the conclusion of a multilateral tax treaty, and of the various European law issues that arise in this context.