Metropolitan dominance can be defined in terms of functional analysis. Urban dominance hierarchy can be established by functions like financial and entrepreneurial services, editorial and printing activities, science art and entertainment. The dominant cities in the world referred to as word cities are said to perform different roles include, centers of insurance, and other related services centers of national and international political power of trade while at the same time they are actively involved as centers of law, medicine, higher education, IT, information mass media and mass - quality goods like centers of cultural arts and entertainment (Power, 45; Thorns, 56; Methot, 11; Willem, 26; Melvin Defleur and Crosby, 74). A dominant metropolitan city can be characterized by its demographic potential high economic capacity and advanced services in financial and insurance services, education and other characteristics which include cultural potential as opposed to other metropolitan cities. Dominant metropolitan cities should be able to provide all the services demanded by the tourist and the inhabitant of the certain state.
Thesis Metropolitan dominion can be defined in terms of population and how the country or city sustains the population. Metropolitan dominance can be defined by analyzing statistical indicators of a population like age structure, population, growth rate, birth rate, death rate and net migration rate, sex ratio, infant mortality rate, life expectancy at birth and total fertility rate, and educational system data.
Increasing dominance of metropolitan cities in the world can be noted from Spain and Latin America. The dominance of metropolitan can be derived from the development of economic sectors like banking and insurance services education available and production of goods and services that possess unique high quality globally (Herzog, 1; Melvin, Defleur and John Crosby, 69; Taylor and Bell, 11).
Dominant metropolitan areas which are increasing in the world. Examples of metropolitan areas are in Spain, Latin America, and United States. Spain's dominant metropolitan areas include San Diego, Madrid, Barcelona, Valencia and many others. Latin America metropolitan areas include Chicago and New York. A metropolitan area should have the following functions, be a pioneer in innovation and competition, and function as a center for control so as to avoid any occurrence of brain drain so as to remain competitive. Metropolitan should function as a gateway to the rest of the world by possessing excellent infrastructure. Metropolitan regions should present an area that promotes internationality, different cultures, and traditions and art (Kiely, 22; Melvin, Defleur and. John Crosby, 71)