CHAPTER 1 INTRODUCTION This book is not a compilation of data relative to wage changes during the past quarter of a century. So far as it has been possible, the attempt has been carefully made to eliminate all statistical compilations or concrete data. Such material has been used only where absolutely necessary to demonstrate a point or indicate a tendency, and even then in the most restricted way. The primary object has not been to present detailed information relative to the compensation of industrial workers. The real purpose has been to analyze and bring to light the extraordinary changes which have occurred during recent years in thought and action relative to theories of wage determination and the principles regulating the participation of employees in the output of industry. This has rendered necessary also a review of the revolutionary changes in the fundamental attitude of industrial leaders, financiers, students, publicists, and members of adjustment agencies, toward wage principles and standards, and also the citation of the sanctions for new standards and theories of wages which have developed through judicial or official action. TrE NEw INDUSTRIAL REVOLUTION Prior to the World War, gradual, evolutionary changes had been taking place in wage-theories. After our entrance into the conflict, however, by mutual agreement between capital and labor, the general procedure was adopted of maintaining the pre-war purchasing power of wages by periodic changes in rates of pay according to fluctuations