The contributions of this book enrich the modern discussion on the legal, political and economic perspectives of the three stages of a Member State's "circle of life" in the EU: accession, participation through compliance with fundamental principles and rules, and potential exit in the form of withdrawal or expulsion. This volume explores the essential conditions for a state to become a member of the EU, and the institutions and methods established by the EU in order to achieve the prosperity of its members and to chart a common course, among other topics.