Tradability, Productivity, and Understanding International Economic Integration
Paul R. Bergin
University of California, Davis - Department of Economics; National Bureau of Economic Research (NBER)
Federal Reserve Bank of San Francisco - Center for Pacific Basin Monetary & Economic Studies
NBER Working Paper No. w11637
This paper develops a two-country macro model with endogenous tradability to study features of international economic integration. Recent episodes of integration in Europe and North America suggest some surprising observations: while quantities of trade have increased significantly, especially along the extensive margin, price dispersion has not decreased and may even have increased. We propose a way of reconciling these price and quantity observations in a macroeconomic model where the decision of heterogeneous firms to trade internationally is endogenous. Trade is shaped both by the nature of heterogeneity -- trade costs versus productivity -- and by the nature of trade policies -- cuts in fixed costs versus cuts in per unit costs like tariffs. For example, in contrast to tariff cuts, trade policies that work mainly by lowering various fixed costs of trade may have large effects on entry decisions at the extensive margin without having direct effects on price-setting decisions. Whether this entry raises or lowers overall price dispersion depends on the type of heterogeneity that distinguishes the new entrants from incumbent traders.
Number of Pages in PDF File: 38
Date posted: November 23, 2005
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