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Stable Partial Agglomeration in a New Economic Geography Model with Urban Frictions

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  • Sylvain Barde

    (University of Kent)

Abstract

This paper extends the Puga (1999) model by introducing urban frictions. It assumes that the agglomeration of manufacturing in a city imposes a cost on the inhabitants of the agglomerated region. Furthermore, an implicit function methodology is developed to provide a numerical stability function that does not require prior analytical work. Simulations reveal that these numerical stability conditions are consistent with the original Puga (1999) analytical predictions. The central finding is that the extension significantly alters the agglomeration properties of the original Puga framework. In particular, partial agglomeration becomes a stable long run outcome in both with and without migration. Furthermore, the level of sensitivity of the agglomeration to the friction cost market parameters is shown to be different in the both cases. This outlines the need to evaluate the imperfectness of migration when modifying the urban geography as a policy implication.

Suggested Citation

  • Sylvain Barde, 2007. "Stable Partial Agglomeration in a New Economic Geography Model with Urban Frictions," Sciences Po publications 07/02, Sciences Po.
  • Handle: RePEc:spo:wpmain:info:hdl:2441/8001
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    References listed on IDEAS

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    Cited by:

    1. Sylvain Barde, 2007. "Modelling the Folk Theorem: A Spatial Cournot Model with Explicit Increasing Returns to Scale," Studies in Economics 0701, School of Economics, University of Kent.

    More about this item

    Keywords

    Agglomeration; New Economic Geography; Migration; Urban friction;

    JEL classification:

    • R11 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General Regional Economics - - - Regional Economic Activity: Growth, Development, Environmental Issues, and Changes
    • R12 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General Regional Economics - - - Size and Spatial Distributions of Regional Economic Activity; Interregional Trade (economic geography)
    • F12 - International Economics - - Trade - - - Models of Trade with Imperfect Competition and Scale Economies; Fragmentation

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