This book provides a detailed analysis of the main innovations and impacts associated with the package of European legislation comprising MiFID II and MiFIR, which constitutes a pillar of the EU's "single rulebook" for financial regulation. Adopting a research-oriented approach, the authors also consider the practical consequences of the new legislation, to provide a clear description of the new rules and the ways in which they address concerns raised by the financial crisis, as well as an appraisal of the theoretical implications from an EU-wide perspective. The book also presents a comparative analysis of how the package is being implemented within the larger countries of the Eurozone and the United Kingdom, and evaluates the likely consequences for banks' business models. This research book is a valuable resource for graduate and master's level students as well as professionals and practitioners interested in understanding the European financial law and, in particular, the dynamics of the investment industry.