The increasing volume of available data, the rapid advances in telecommunications, and the interrelationships of the global markets which are becoming stronger, create new challenges for researchers and practitioners in economics and finance. At the same time, the regulatory authorities are in a continuous attempt to establish effective rules for monitoring and regulating the global markets. As a result, the decision making process in economics and finance becomes more and more complex, thus requiring new advanced and sophisticated analysis methodologies to be developed and implemented. The contents of this volume cover a wide range of topics, including among others portfolio optimisation, stock market prediction and trading, auditing, investment decisions, banking management and corporate performance.