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Containership size and quay crane productivity: empirical evidence from Busan New Port

Author

Listed:
  • Byungkwon Jeong

    (HMM PSA New-Port Terminal)

  • Chi Yeol Kim

    (Korea Maritime and Ocean University)

Abstract

There is an unfolding phenomenon in the liner shipping sector that the cargo-carrying capacity of containerships continues to increase since the 1980s. While the main driver of the ship size increase is to achieve economies of scale by reducing unit costs, a plethora of studies in the maritime field have pointed out to the diseconomies of scale in port and along the supply chain. It is therefore of utmost importance to investigate the impact of the increase in the containership size on port operations. In this regard, this paper highlights the relationship between ship size and quay crane productivity by analysing a monthly dataset obtained from 5 container terminal operators in Busan New Port in the period 2013–2023. The impact of ship size on quay crane productivity is estimated in panel regressions controlling for berth and yard occupancy, container throughput. Consistent with the theoretical expectations in the earlier maritime literature, it is found that quay crane productivity is negatively affected by containership size and this relationship is robust also when yard congestion is considered as a controlling factor.

Suggested Citation

  • Byungkwon Jeong & Chi Yeol Kim, 2025. "Containership size and quay crane productivity: empirical evidence from Busan New Port," Maritime Economics & Logistics, Palgrave Macmillan;International Association of Maritime Economists (IAME), vol. 27(2), pages 293-303, June.
    • Handle: RePEc:pal:marecl:v:27:y:2025:i:2:d:10.1057_s41278-024-00286-0
    DOI: 10.1057/s41278-024-00286-0
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