The advancement of communications technologies including transport, which causes movement of goods, services and capital from countries that are the core of the developing world (Core Countries), which refers to the developed countries in the West, including the United States. the country is in the semi-periphery. (Semi-Periphery), which represents developing countries. And the marginalization of developing countries (Periphery), which refers to underdeveloped countries.
The importance principle of the 'Core-Periphery' The relationship of tourism in my opinion, The core regions is the country will develop and full efficiency of people in area .There are exchanging trades and money and They have more employment occasion and occasion to upgrade and prolong their business. Peripheral regions could make most possible advantage from core regions. Peripheral areas, having go down of production They can get many of profit because Peripheral are better shopping center in the core areas.