Understanding the Internal Structure of Self-Organizing Cities
AbstractLucas and Rossi-Hansberg (2002) and Fujita and Ogawa (1982, 1989) develop urban models in which economic activity self-organizes due to spillovers in production. However, Fujita and Ogawa (1982, 1989) show that rents and employment density are flat or falling as the city center is approached, while in the simulations of Lucas and Rossi-Hansberg (2002) rents rise at an increasing rate towards the center suggesting a concentration of employment near the center. For the Lucas and Rossi-Hansberg model, we prove that land rents and density must be flat or falling near the center. We explain how using a polar coordinate system when approximating a two-dimensional integral can create systematic imprecision in their simulations, and then present revised simulations. The proofs and simulations suggest that in urban models where economic activity self-organizes firms do not unduly cluster at the center of a central business district even in monocentric equilibria. JEL Classification: R13, R14, R30 Key words: non-monocentric cities, rent gradient, employment density, polar coordinate simulations
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Bibliographic InfoPaper provided by University of Connecticut, Department of Economics in its series Working papers with number 2012-34.
Length: 20 pages
Date of creation: Oct 2012
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Find related papers by JEL classification:
- R13 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General Regional Economics - - - General Equilibrium and Welfare Economic Analysis of Regional Economies
- R14 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General Regional Economics - - - Land Use Patterns
- R30 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - Real Estate Markets, Spatial Production Analysis, and Firm Location - - - General
This paper has been announced in the following NEP Reports:
- NEP-ALL-2012-10-27 (All new papers)
- NEP-GEO-2012-10-27 (Economic Geography)
- NEP-URE-2012-10-27 (Urban & Real Estate Economics)
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Gabriel M. Ahlfeldt & Stephen J. Redding & Daniel M. Sturm & Nikolaus Wolf, 2014.
"The Economics of Density: Evidence from the Berlin Wall,"
NBER Working Papers
20354, National Bureau of Economic Research, Inc.
- Sturm, Daniel & Ahlfeldt, Gabriel & Redding, Stephen & Wolf, Nikolaus, 2013. "The Economics of Density: Evidence from the Berlin Wall," Annual Conference 2013 (Duesseldorf): Competition Policy and Regulation in a Global Economic Order 79873, Verein für Socialpolitik / German Economic Association.
- Gabriel M. Ahlfeldt & Stephen J. Redding & Daniel M. Sturm & Nikolaus Wolf, 2012. "The Economics of Density: Evidence from the Berlin Wall," CEP Discussion Papers dp1154, Centre for Economic Performance, LSE.
- Gabriel M. Ahlfeldt & Stephen J. Redding & Daniel M. Sturm & Nikolaus Wolf, 2012. "The Economics of Density: Evidence from the Berlin Wall," SERC Discussion Papers 0118, Spatial Economics Research Centre, LSE.
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