This book is a result of several years of research to provide readers with a novel and comprehensive analysis on business models in banking, essential to understanding bank businesses pre- and post- financial crisis and how they evolve in the financial system. This book will provide depositors, creditors, credit rating agencies, investors, regulators, supervisors, and other market participants with a comprehensive analytical framework and analysis to better understand the nature of risk attached to the bank business models and its contribution to systemic risk throughout the economic cycle. The book will also guide post-graduate students and researchers delving into this topic.