On the Number and Size of Cities
AbstractWe study the effects of a decrease in trade costs on the spatial distribution of industry in a multi-regional economy, when a rise in the regional population of workers generates higher urban costs. When the number of cities is unaffected by falling trade costs, small cities become smaller for large trade costs, medium-sized cities become smaller for medium values of trade costs, and large cities become smaller for small trade costs. Furthermore, when urban costs are ‘identical,’ we show that there exists a path of stable equilibria such that the industry, first, experiences progressive agglomeration into a decreasing number of cities and, then, dispersion into a growing number of cities. The second phase arises because of the increasing urban costs associated with the process of agglomeration.
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Bibliographic InfoPaper provided by C.E.P.R. Discussion Papers in its series CEPR Discussion Papers with number 3386.
Date of creation: May 2002
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Find related papers by JEL classification:
- F12 - International Economics - - Trade - - - Models of Trade with Imperfect Competition and Scale Economies
- L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
- R13 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General Regional Economics - - - General Equilibrium and Welfare Economic Analysis of Regional Economies
This paper has been announced in the following NEP Reports:
- NEP-ALL-2003-02-18 (All new papers)
- NEP-GEO-2003-02-18 (Economic Geography)
- NEP-URE-2003-02-18 (Urban & Real Estate Economics)
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