In twenty-three original essays this book reviews the course of labor economics over the more than two centuries since the publication of Adam Smith's Wealth of Nations. It fully examines the contending theories, changing environmental contexts, evolving issues, and varied policies affecting labor's participation in the economy. While the intellectual framework of the book looks partly to the past--explaining the labor factor in classical and neoclassical systems--its emphasis is on contemporary problems that will figure prominently in future developments, such as the operation of internal labor markets, dispute resolution, concession bargaining, equal employment opportunity, and individual labor contracting.