论大都市区与美国经济增长

大都市区是现代美国经济活动的主要场所。人口和企业在大都市区的集中,使新工业更易产生,知识的传播速度加快,从而刺激了科技变革,增加了产量。大都市区比非大都市区有着更加广大的市场,更加专业化的劳动力和更加广泛和便利的交通、通讯设施。这些优势使大都市区成为美国经济增长的发动机。

Metropolitan Areas and the Economic Growth of U.S.A

As the focal points of economic activity, cities and counties within metropolitan areas are essential to the nation's economic development. The geographic concentration of business and people in metro areas creates unique economic conditions that generate new industries, speed the diffusion of knowledge, spur technological innovation, and increase productivity. Metro areas have larger markets for goods and services, more specialized labor pools, and more extensive and sophisticated transportation and telecommunications networks than non-metro areas. The competitive advantages make metro areas the engines of U.S. economic growth.