Did highways cause suburbanization?
Did highways cause suburbanization?
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DOI：
10.1162/qjec.122.2.775
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发表时间：
2007-05-01
影响因子：
13.7
通讯作者：
Baum-Snow, Nathaniel
中科院分区：
文献类型：
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作者：
Baum-Snow, Nathaniel
1950年至1990年间，尽管整个大都市地区的人口增长了72%，但美国中心城市的总人口下降了17%。本文评估了新的限制通行高速公路的建设对中心城市人口下降的影响程度。使用州际公路系统的规划部分作为外生变化的来源，经验估计表明，一条穿过中心城市的新公路将使其人口减少约 18%。据估计，如果没有修建州际公路系统，中心城市的总人口将增长约 8%。
Between 1950 and 1990, the aggregate population of central cities in the United States declined by 17 percent despite population growth of 72 percent in metropolitan areas as a whole. This paper assesses the extent to which the construction of new limited access highways has contributed to central city population decline. Using planned portions of the interstate highway system as a source of exogenous variation, empirical estimates indicate that one new highway passing through a central city reduces its population by about 18 percent. Estimates imply that aggregate central city population would have grown by about 8 percent had the interstate highway system not been built.