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In this paper, we investigate the causes of metropolitan suburbanization. We consider two classes of theories of suburbanization, both of which are important: the first, favored by urban theorists and transportation experts, might be called a natural evolution theory; the second stresses the fiscal and social problems of central cities. We sketch the monocentric model of urban areas, discuss the gradient measure of suburbanization, and offer some cross-country comparisons of suburbanization. Finally we present conclusions and policy implications.
Mieszkowski et al. (Sun,) studied this question.