Published online by Cambridge University Press: 28 March 2008
INTRODUCTION
In 1990, for the first time, a majority of the U.S. population lived in metropolitan areas with more than one million people. More than half of these thirty-nine areas were in the South and West (see Figure 2.1). Only five such areas (New York, Chicago, Philadelphia, Boston, and Pittsburgh) had existed in 1900. Then they held 15.5 percent of the U.S. population, and all were in the Northeast and Midwest. During the intervening decades the boundaries, internal structure, and economic roles of U.S. regions and urban areas altered dramatically.
A national economy can be thought of spatially in at least two ways: as a set of regions or as a system of cities. These are not mutually exclusive. Although often defined by industrial specialization (agricultural, extractive, or manufacturing), a region also can be defined as a nodal metropolis structuring a surrounding area. Historically, regions and cities have influenced each other in numerous ways. But in the United States and else-where their relative importance for economic growth has changed over time. The system of cities has assumed the dominant role in the twentieth century.
Growth in capitalist economies depends upon continually shifting boundaries or frontiers: spatial, technological, and social. The expectation of high financial returns on each of these frontiers, although not always realized, drives the investment that sustains aggregate growth. New territories are developed and new cities constructed. Technological innovations are conceived and embodied in equipment and organizations. Firms do not simply reallocate resources already employed, but expand and contract the social boundaries of the system of firms.
To save this book to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Find out more about the Kindle Personal Document Service.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.