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Market access in global and regional trade

By Jose De Sousa, Thierry Mayer and Soledad Zignago

Abstract

This paper develops a method to measure difficulties in market access over a large set of countries (both developing and developed) and industries, during the period 1980-2006. We use a micro-founded heterogeneous-consumers model to estimate the impact of national borders on global and regional trade flows. Results show that difficulties faced by developing countries' exporters in accessing developed markets are 50% higher than those faced by Northern exporters. These international fragmentations have however experienced a noticeable fall since 1980 in both Southern and Northern markets, and in all industries. It is twenty three times easier to enter those markets for a Southern country exporter in 2006 than in 1980. While tariffs still have an influence on trade patterns, they do not seem to explain an important part of the border effect. Last, our theory-based measure offers a renewal of the assessment of the impact of regional trading arrangements. The EU, NAFTA, ASEAN and MERCOSUR agreements all tend to reduce the estimated degree of market fragmentation within those zones, with the expected ranking between their respective trade impact.

Topics: F15 - Economic Integration, F13 - Trade Policy; International Trade Organizations, F12 - Models of Trade with Imperfect Competition and Scale Economies, F14 - Empirical Studies of Trade
Year: 2011
DOI identifier: 10.2139/ssrn.1982470
OAI identifier: oai:mpra.ub.uni-muenchen.de:35602

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