This book contains the contributions to the Vienna Arbitration Forum on "Investment and Commercial Arbitration - Similarities and Divergences" which took place at the University of Vienna Law School in November 2008. The conference focused on topical issues in international investment arbitration and in commercial arbitration. Featuring speakers from academia, as well as legal practices, the Vienna Arbitration Forum addressed controversial topics and explored similarities and divergences. Table of Contents include: Consolidation of Proceedings in International Investment Arbitration * Consolidation of Proceedings in International Commercial Arbitration * The Limits of Party Autonomy in Investment Arbitration * Limits of Party Autonomy in International Commercial Arbitration * The Annulment of ICSID (International Centre for Settlement of Investment Disputes) Awards * Annulment of Arbitral Awards in International Commercial Arbitration * Independence, Impartiality and Duty of Disclosure in Investment Arbitration * Judicial Approaches to Arbitrator Independence and Impartiality in International Commercial Arbitration.