Gravity with Gravitas: A Solution to the Border Puzzle

James Anderson and Eric van Wincoop

No 485, Boston College Working Papers in Economics from Boston College Department of Economics

Abstract: The gravity model has been widely used to infer substantial trade flow effects of institutions such as customs unions and exchange rate mechanisms. McCallum [1995] found that the US-Canada border led to trade between provinces that was a factor 22 (2,200%) times trade between states and provinces, a spectacular puzzle in light of the low formal barriers on this border. We show that the gravity model usually estimated does not correspond to the theory behind it. We solve the "border puzzle" by applying the theory seriously. We find that national borders reduce trade between the US and Canada by about 40%, while reducing trade among other industrialized countries by about 30%. The spectacular McCallum headline number is the result of a combination of omitted variables bias and the small size of the Canadian economy.

Keywords: gravity; bordered effects (search for similar items in EconPapers)
JEL-codes: F1 (search for similar items in EconPapers)
Pages: 37 pages
Date: 2000-11-15
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (110)

Published, American Economic Review, 2003, 93, 170-92

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Journal Article: Gravity with Gravitas: A Solution to the Border Puzzle (2003)
Working Paper: Gravity with Gravitas: A Solution to the Border Puzzle (2001)
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Persistent link: https://EconPapers.repec.org/RePEc:boc:bocoec:485

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