Book excerpt: As economic advisor to the Bank of England for many years, C. A. E. Goodhart is uniquely positioned to assess the role of the central bank in the modern financial system. This book brings together twenty-one of his previously published articles dealing with the changing functions of central banks over time, recent efforts to maintain price stability, and debates over specific financial regulation proposals in the UK. Although the current day-to-day operations of central banks are subject to continuous comment and frequent criticism, their structural role within the economic system as a whole has generally been accepted without much question, despite several attempts by economists in recent decades to challenge the value of the institution. C. A. E. Goodhart brings his knowledge of both the theoretical arguments and the actual working of central banks to bear in these essays. Part I looks at the general purposes and functions of central banks within the financial system and their evolution over time. Part II concentrates on the current objectives and operations of central banks, and the maintenance of price stability in particular. Part III analyzes the broader issues of financial regulation.