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Intra-industry Trade and Industry Distribution of Productivity: A Cournot-Ricardo Approach

Listed author(s):
  • E. Young Song


    (Department of Economics, Sogang University)

  • Chan-Hyun Sohn


    (Department of International Trade and Business, Kangwon National University)

This paper constructs a Cournot-Ricardo model of trade by incorporating Cournot competition in a Ricardian trade model. In this model, the share of intra-industry trade in bilateral trade volume decreases as trading partners become more different in terms of the industry distribution of labor productivity. We show that this relationship is a special case of a more general relationship: the share of intraindustry is decreasing in a specialization index. This specialization index turns out to be equal to the difference in the industry distribution of productivity in the case of our Cournot-Ricardo model, while it is given by the difference in capital-labor in the well-known case of monopolistic competition. As both technologies and factor endowments would be important in shaping specialization patterns in the real world, we conjecture that the share of intra-industry trade is decreasing in two measures of specialization: the difference in the industry distribution of productivity and the difference in capital-ratio. Our OLS estimations strongly support this conjecture. In fixed effects regressions, both measures lose significance in the entire sample, but the industry distribution of productivity is significant in explaining trade between high income countries.

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Paper provided by Research Institute for Market Economy, Sogang University in its series Working Papers with number 1120.

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Length: 29 pages
Date of creation: Feb 2011
Handle: RePEc:sgo:wpaper:1120
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  1. Bernhofen, Daniel M., 1999. "Intra-industry trade and strategic interaction: Theory and evidence," Journal of International Economics, Elsevier, vol. 47(1), pages 225-244, February.
  2. Nicita, Alessandro & Olarreaga, Marcelo, 2001. "Trade and production, 1976-99," Policy Research Working Paper Series 2701, The World Bank.
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