1 Services: Lever to Growth.- 2 Services: What are They?.- Common characteristics of services.- Main types of services and their classification.- Specific aspects of transactions in services.- Contribution to the theory of postindustrial development.- Commentary: Wealth, Welfare, and the Hidden Economy.- 3 Value and Cost of Services.- Calculation of the value of a service product.- Definition of a unit of service.- Characteristics of nonmarket services.- 4 The Future of Services Societies and of Economic Policy.- Modification of production structures and the crisis of industrial societies: are services to blame?.- Characteristics of the postindustrial society.- Services and international competitiveness.- Gaps in the theory of international trade.- International economic cooperation revisited.- Postindustrial economic and social policies.- 5 Basic Data and Trends in Production and Trade in Services.- Goods-services linkages in the economy.- Services in GNP.- Services in international trade.- Services as items of trade.