A QUANTITATIVE ANALYSIS OF SUBURBANIZATION AND THE DIFFUSION OF THE AUTOMOBILE*
构建圆形城市模型，定量分析1910-1970年间美国汽车普及和收入增长对郊区化的贡献，发现60%的战后郊区化可由这些因素解释。
Suburbanization in the United States between 1910 and 1970 was concurrent with the diffusion of the automobile. A circular city model is developed in order to access quantitatively the contribution of automobiles and rising incomes to suburbanization. The model incorporates a number of driving forces of suburbanization and car adoption, including falling automobile prices, rising real incomes, changing costs of traveling by car and with public transportation, and urban population growth. According to the model, 60% of postwar (1940–1970) suburbanization can be explained by these factors. Rising real incomes and falling automobile prices are shown to be the key drivers of suburbanization.