TY - JOUR AU - Kim,Sukkoo TI - The Reconstruction of the American Urban Landscape in the Twentieth Century JF - National Bureau of Economic Research Working Paper Series VL - No. 8857 PY - 2002 Y2 - March 2002 UR - http://www.nber.org/papers/w8857 L1 - http://www.nber.org/papers/w8857.pdf N1 - Author contact info: Sukkoo Kim Department of Economics Washington University One Brookings Drive St. Louis, MO 63130-4899 Tel: 314/935-4961 Fax: 314/935-4156 E-Mail: soks@artsci.wustl.edu AB - One of the most important representations of an urban spatial structure is its density. Indeed, an urban area is defined as a densely populated place with a sizeable number of inhabitants. Yet, despite the fact that the defining element of an urban area is its density, few scholars have systematically examined the long-run changes in the densities of economic activities in these areas. This paper documents the historical changes in population and employment densities in U.S. cities and metropolitan areas and explores the causes of their rise and decline between the late nineteenth and the twentieth centuries. ER -