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世界经济发展的实践表明,单凭某个城市的经济增长难以支撑区域乃至一个国家的发展,城市群正逐渐取代单个城市成为新的区域经济增长引擎。不同城市间的物质、信息、能量交流是维系城市群活力的基础,其内部城市间经济联系的紧密性是城市群一个最为突出的特征。本文通过放宽假设条件构建了城市间经济联系模型,并对辽宁沿海经济带城市间经济联系强度进行实证研究,得出产业分工是加快辽宁沿海经济带城市群发展的有效途径。
The practice of world economic development shows that city growth is gradually replacing single cities as a new engine of regional economic growth based on the fact that the economic growth of a certain city can hardly support the development of a region or even a country. The exchange of material, information and energy among different cities is the basis for maintaining the dynamism of the urban agglomeration. The closeness of the economic links among the intercity cities is one of the most prominent features of the urban agglomeration. This paper constructs the model of inter-city economic connection by relaxing the assumptions, and conducts an empirical study on the intensity of economic linkages between cities in Liaoning coastal economic zone. It concludes that industrial division of labor is an effective way to speed up the development of the urban agglomeration in Liaoning coastal economic belt.