This document discusses the rise of service economies since World War II. It defines a service economy as one where a large proportion of the workforce and economic output comes from the service sector, such as travel, communication, insurance, hotels, and recreational services, rather than agriculture and manufacturing. The United States became the first major service economy after WWII, followed by other developed nations. The growth of service industries increases the possibility of government intervention in markets to maintain essential services. Factors influencing the development of the UK service economy include its impact on employment, output, consumption, and balance of payments.