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从世界范围看,世界上著名城市群如美国东北部大西洋沿岸城市群、北美五大湖城市群、日本太平洋沿岸城市群、欧洲西北部城市群等,都在各自地区乃至世界经济的发展中,起到十分重要的作用。全球经济产出超过1 000亿美元、排名前40的城市群,它们的经济产出之和占世界经济总量的66%,而在全球创新中所占的比例也高达85%。因此,城市群已成为当今世界经济空间的核心单元和主导力量。以城市群作为发展单元,可以克服单个城市在发展过程中出现的资源不足,通过更大区域范围的协调发展,提高资源
From a global perspective, the world famous urban agglomerations such as the urban agglomeration of the Atlantic coast in the northeastern United States, the Great Lakes National Group in North America, the urban agglomeration in the Pacific Rim of Japan and the urban agglomeration in the northwestern Europe all play their respective roles in the economic development of their respective regions and even the world Very important role. The urban agglomerations, with more than $ 100 billion in global economic output and the top 40 economies, account for 66% of the world economy and 85% of global innovation. Therefore, the urban agglomeration has become the core unit and leading force in the economic space in the world today. Taking urban agglomeration as a unit of development can overcome the shortage of resources in a single city during the development process and increase resources through coordinated development in a larger area