I have a student trying to analyze a panel with international trade. His idea was to include the geographic distance of the countries as a control variable to explain (part of) trade. However, this data is invariant between years. A professor in his committee suggested changing to logistics costs between the pair of countries, which would vary over the years.

Would anyone know a source (or a way to estimate) such costs?

Any feedback is greatly appreciated.

Best regards,


Dr. Iuri Gavronski
Assistant Professor
Programa de Pós-Graduação em Administração
Universidade do Vale do Rio dos Sinos – UNISINOS
Av. Unisinos, 950 – São Leopoldo – RS – Brasil
Sala (Room) 5A 407 D

TEL +55-51-3591-1122 ext. 1589
FAX +55-51-3590-8447
Email: [log in to unmask]

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