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Faculty Research Working Paper Series
Edward L. Glaeser
Fred and Eleanor Glimp Professor of Economics, FAS
phone: (617)496-2150
fax: (617)496-1722
Did the Death of Distance Hurt Detroit and Help New York?
Glaeser, Edward L., and Giacomo A.M. Ponzetto. "Did the Death of Distance Hurt Detroit and Help New York?" HKS Faculty Research Working Paper Series RWP08-002, January 2008.
Abstract
Urban proximity can reduce the costs of shipping goods and speed the flow of ideas. Improvements in communication technology might erode these advantages and allow people and firms to decentralize. However, improvements in transportation and communication technology can also increase the returns to new ideas, by allowing those ideas to be used throughout the world. This paper presents a model that illustrates these two rival effects that technological progress can have on cities. We then present some evidence suggesting that the model can help us to understand why the past thirty-five years have been kind to idea-producing places, like New York and Boston, and devastating to goods-producing cities, like Cleveland and Detroit.
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