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Agglomeration and directional imbalance of freight rates : the role of density economies in the transport sector

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  • Tsubota, Kenmei

Abstract

This paper examines the conventional assumption that bilateral transport costs are symmetric. We develop an economic geography model with transport sector in which asymmetric freight rates can occur as a result of density economies. Comparing this to models without density economies, we show that agglomeration of economic activities is more likely to emerge and that multiple equilibria can emerge for some parameters. Then we show the change in its bifurcation and stability of equilibrium and conclude that economies of density in transport flows can act as an agglomeration force.

Suggested Citation

  • Tsubota, Kenmei, 2015. "Agglomeration and directional imbalance of freight rates : the role of density economies in the transport sector," IDE Discussion Papers 488, Institute of Developing Economies, Japan External Trade Organization(JETRO).
    • Handle: RePEc:jet:dpaper:dpaper488
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    File URL: https://ir.ide.go.jp/?action=repository_action_common_download&item_id=37688&item_no=1&attribute_id=22&file_no=1
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    References listed on IDEAS

    as
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    More about this item

    Keywords

    Transportation; Economic geography; Costs; Agglomeration; Asymmetric transport costs; Directional imbalance of freight rates; Density economies;
    All these keywords.

    JEL classification:

    • L91 - Industrial Organization - - Industry Studies: Transportation and Utilities - - - Transportation: General
    • R12 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General Regional Economics - - - Size and Spatial Distributions of Regional Economic Activity; Interregional Trade (economic geography)
    • R41 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - Transportation Economics - - - Transportation: Demand, Supply, and Congestion; Travel Time; Safety and Accidents; Transportation Noise

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