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Transportation Costs and International Trade in the Second Era of Globalization

Hummels, David·2007·Journal of Economic Perspectives

Abstract

While the precise causes of postwar trade growth are not well understood, declines in transport costs top the lists of usual suspects. However, there is remarkably little systematic evidence documenting the decline. This paper brings to bear an eclectic mix of data in order to provide a detailed accounting of the time-series pattern of shipping costs. The ad-valorem impact of ocean shipping costs is not much lower today than in the 1950s, with technological advances largely trumped by adverse cost shocks. In contrast, air shipping costs have dropped an order of magnitude, and airborne trade has grown rapidly as a result. As a result, international trade has also experienced a significant rise in speed.

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Research works printed but not linked: 16

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  16. Waters W. G., 1970, American Economic Review, 60, 1013

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Metadata

Authors
Hummels, D.
Affiliations
Purdue University, West Lafayette, Indiana.
Venue
Journal of Economic Perspectives
Published
2007-07-01
Volume
21
Issue
3
Pages
131-154
ISSN
0895-3309
Cited by
841
References
1
Language
en

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CoChat. (2026). Citation check: Transportation Costs and International Trade in the Second Era of Globalization. https://app.cochat.ai/papers/10.1257/jep.21.3.131
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Hummels, D. (2007). Transportation Costs and International Trade in the Second Era of Globalization. Journal of Economic Perspectives. https://doi.org/10.1257/jep.21.3.131