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Transport‐induced agglomeration effects: Evidence for US metropolitan areas

Author

Listed:
  • Patricia C. Melo
  • Daniel J. Graham

Abstract

While the interaction between transport and agglomeration economies is widely accepted, there is insufficient research attempting at a direct empirical quantification. Using a balanced panel dataset for US metropolitan areas, we estimate a system of simultaneous equations to measure the indirect effect of urban agglomeration economies which arises through transport provision. Our findings suggest that public transit reinforces the effect of urban agglomeration, whereas road lane miles appear to weaken it. The results highlight the importance of public transit in supporting positive urban agglomeration externalities. Si bien la interacción entre el transporte y las economías de aglomeración está aceptada ampliamente, no hay suficiente investigación que intente una cuantificación empírica directa. Mediante el uso de un conjunto equilibrado de datos de panel para áreas metropolitanas de los EE. UU., se ha estimado un sistema de ecuaciones simultáneas para medir el efecto indirecto de las economías de aglomeración urbana que surge de la provisión de transporte. Los hallazgos sugieren que el tránsito público refuerza el efecto de la aglomeración urbana, mientras que el kilometraje de las calles y carreteras parece debilitar este efecto. Los resultados resaltan la importancia del tránsito público en cuanto al apoyo de las externalidades positivas de la aglomeración urbana. 交通輸送と集積の経済に相関関係があることは広く認められているが、直接的、実証的な定量化を試みた研究は多くは実施されていない。本稿では、米国の大都市圏の、欠損値を含まないパネルデータセットを用いて、都市部における集積の経済から、交通輸送を通じてもたらされる間接的な効果を測定する連立方程式システムを推定する。本研究の知見から、道路の車線長(road lane miles)は集積の経済の効果を弱めるようであるが、その一方で公共交通機関はその効果を増強することが示唆される。結果から、集積の経済から生じる正の外部性を支えるうえでの、公共交通機関の重要性が強調される。

Suggested Citation

  • Patricia C. Melo & Daniel J. Graham, 2018. "Transport‐induced agglomeration effects: Evidence for US metropolitan areas," Regional Science Policy & Practice, Wiley Blackwell, vol. 10(1), pages 37-47, March.
  • Handle: RePEc:bla:rgscpp:v:10:y:2018:i:1:p:37-47
    DOI: 10.1111/rsp3.12116
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    Cited by:

    1. Wang, Yongpei & Xu, Zhenyu & Liang, Jia, 2026. "Impact of transportation hubs on urban economic resilience: Evidence from national comprehensive transportation hub cities," Transportation Research Part A: Policy and Practice, Elsevier, vol. 203(C).
    2. Liu, Sijing & He, Nannan & Cao, Xindan & Li, Guoqi & Jian, Ming, 2022. "Logistics cluster and its future development: A comprehensive research review," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 168(C).
    3. Zhou, You & Zhang, Lingzhu & JF Chiaradia, Alain, 2022. "Estimating wider economic impacts of transport infrastructure Investment: Evidence from accessibility disparity in Hong Kong," Transportation Research Part A: Policy and Practice, Elsevier, vol. 162(C), pages 220-235.
    4. Eivind Tveter, 2021. "Transport network improvements: The effects on wage earnings," Regional Science Policy & Practice, Wiley Blackwell, vol. 13(3), pages 478-491, June.
    5. Moshe Givoni, 2020. "The high‐speed bus (HSB) as an alternative to the high‐speed rail (HSR): A conceptual approach examined through a case study," Regional Science Policy & Practice, Wiley Blackwell, vol. 12(3), pages 507-518, June.
    6. Melo, Patricia C. & Sobreira, Nuno & Goulart, Pedro, 2019. "Estimating the long-run metro demand elasticities for Lisbon: A time-varying approach," Transportation Research Part A: Policy and Practice, Elsevier, vol. 126(C), pages 360-376.

    More about this item

    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)
    • 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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