TY  - JOUR
AU  - Harrigan,James
TI  - Airplanes and Comparative Advantage
JF  - National Bureau of Economic Research Working Paper Series
VL  - No. 11688
PY  - 2005
Y2  - October 2005
UR  - http://www.nber.org/papers/w11688
L1  - http://www.nber.org/papers/w11688.pdf
N1  - Author contact info:
James Harrigan
Department of Economics
University of Virginia
P.O. Box 400182
Charlottesville, VA 22904-4182
Tel: 434-243-8354
Fax: 434-982-2904
E-Mail: harrigan@nber.org
AB  - 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.
ER  -