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Air and water cargo transport mode substitutions among US customs districts

雑誌名 Maritime policy & management
出版社 Taylor & Francis
巻号 Vol.16 No.3
筆者・編者・翻訳者 Barney Warf
記事概要

Introduction
Air versus water transportation: preliminary comments
Empirical patterns among US customs districts
Modelling air-water substitution
Concluding comments