Density economies and transport geography: Evidence from the container shipping industry

Abstract

By exploiting the 1995 Hanshin earthquake, which occurred in Japan, as an exogenous shock to the container shipping industry of northeastern Asia, this study provides an empirical relevance of the role of transport density economies in shaping the transport geography. The Hanshin earthquake caused severe damage to the Kobe port. Consequently, its container throughput was largely diverted to the nearby Busan port, which scaled up in this windfall. Focusing on the long-term growth of major port areas in northeastern Asia, we find that extensive diversions of container traffic occurred after the earthquake from Tokyo and Yokohama ports to Busan port, although container shipping operations in Tokyo and Yokohama ports were not directly affected by the earthquake. We interpret the economies of transport density benefitting Busan as the underlying mechanism; increased transport density allows Busan port to further enlarge its hinterlands and reshape the transport geography. We also find that the unintended diversions of container shipping lead to a structural change of manufacturing pattern in related regions.

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