This volume reflects the pioneering contribution of Nancy and Richard Ruggles to the development of national accounts. It provides a comprehensive overview of the evolution of national accounting systems over the last 50 years.The book is divided into three parts: the evolution of national accounting, the United States national accounts and the United Nations system of national accounts. The authors look at the treatment of pensions, insurance, and value added in national accounting, and the relationship between national income accounting and economic policy. They then look at the conceptual basis and evolution of national accounting systems in the United States between 1947 and 1977 and the integrated economic accounts between 1947 and 1980. Finally, the book includes a review of the major issues in the United Nations system of national accounts, both in terms of measurement and in their applicability to economies in transition and developing countries.