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Centrality bias in inter-city trade

Author

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  • Mori, Tomoya
  • Wrona, Jens

Abstract

Using Japanese inter-city trade data, we find a substantial centrality bias in aggregate gravity estimations: Shipments from large cities (central places) to their hinterland are 50%–125% larger than predicted by gravity forces. We argue that this discrepancy results from aggregating across industries, that concentrate in a few central places, which predominantly serve their respective hinterlands. Decomposing the centrality bias along the margins of our data, we attribute most of the centrality bias to substantially larger extensive industry margins in exports from larger cities to their smaller hinterland cities than vice versa.

Suggested Citation

  • Mori, Tomoya & Wrona, Jens, 2024. "Centrality bias in inter-city trade," Regional Science and Urban Economics, Elsevier, vol. 109(C).
    • Handle: RePEc:eee:regeco:v:109:y:2024:i:c:s0166046224000917
    DOI: 10.1016/j.regsciurbeco.2024.104060
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    More about this item

    Keywords

    Inter-city trade; Central place theory; Gravity equation; Aggregation bias;
    All these keywords.

    JEL classification:

    • C43 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods: Special Topics - - - Index Numbers and Aggregation
    • F12 - International Economics - - Trade - - - Models of Trade with Imperfect Competition and Scale Economies; Fragmentation
    • F14 - International Economics - - Trade - - - Empirical Studies of Trade
    • R12 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General Regional Economics - - - Size and Spatial Distributions of Regional Economic Activity; Interregional Trade (economic geography)

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