NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Airplanes and Comparative Advantage

James Harrigan

NBER Working Paper No. 11688
Issued in October 2005
NBER Program(s):   ITI

Airplanes are a fast but expensive means of shipping goods, a fact which has implications for comparative advantage. The paper develops a Ricardian model with a continuum of goods which vary by weight and hence transport cost. Comparative advantage depends on relative air and surface transport costs across countries and goods, as well as stochastic productivity. A key testable implication is that the U.S. should import heavier goods from nearby countries, and lighter goods from faraway counties. This implications is tested using detailed data on U.S. imports from 1990 to 2003. Looking across goods the U.S. imports, nearby exporters have lower market share in goods that the rest of the world ships by air. Looking across exporters for individual goods, distance from the US is associated with much higher import unit values. These effects are large, which establishes that the model identifies an important influence on specialization and trade.

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This paper was revised on July 26, 2010

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Document Object Identifier (DOI): 10.3386/w11688

Published: Harrigan, James, 2010. "Airplanes and comparative advantage," Journal of International Economics, Elsevier, vol. 82(2), pages 181-194, November.

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