Notwithstanding national variations in the shares of Gross Domestic Product attributable to services, manufacturing, agriculture, and mining, in the majority of economies the services share is often greater than that of the other three components of economic activity combined. Arguments in favor of liberalizing the market for services are becoming increasingly widespread. These arguments particularly apply to financial services, telecommunications, and transportation, which are key sectors that significantly contribute to a nation's economic development. However, the challenges of...