Using a cutting-edge structure, where a current description of the service sector and up-to-date case studies are compared and contrasted with innovative activity in manufacturing, this book contributes towards a better theoretical understanding of innovation in the U.S. service sector. The U.S. service sector is the largest sector in the U.S. economy and accounts for an increasingly significant share of U.S. gross domestic product, currently 68 percent. Both in the United States, as well as in other industrialized nations, the service sector is a dynamic component of economic activity and growth. As pervasive and economically important as the service sector is, innovative activity in service-sector firms remains somewhat of an enigma; it is not well understood and not well defined because it differs dramatically from the traditional model of innovation in manufacturing. Innovation in the U.S. Service Sector fills this void, placing emphasis on the United States, but with global relevance. It is essential reading for all students of business and management, economics and political science.