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Trade and Variety in a Model of Endogenous Product Differentiation

  • Oliver Lorz

    ()

    (RWTH Aachen University)

  • Matthias Wrede

    ()

    (Philipps-University Marburg)

This paper sets up a model of endogenous product differentiation to analyze the variety effects of international trade. In our model multi-product firms decide not only about the number of varieties they supply but also about the degree of horizontal differentiation between these varieties. Firms can raise the degree of differentiation by investing variety-specific fixed costs. In this setting, we analyze how trade integration, i.e. an increase in market size, influences the number of firms in the market, the number of product varieties supplied by each firm, and the degree of differentiation.

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File URL: http://www.uni-marburg.de/fb02/makro/forschung/magkspapers/02-2009_lorz.pdf
File Function: First version, 2009
Download Restriction: no

Paper provided by Philipps-Universität Marburg, Faculty of Business Administration and Economics, Department of Economics (Volkswirtschaftliche Abteilung) in its series MAGKS Papers on Economics with number 200902.

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Length: 13 pages
Date of creation: 2009
Date of revision:
Publication status: Forthcoming in
Handle: RePEc:mar:magkse:200902
Contact details of provider: Postal: Universitätsstraße 25, 35037 Marburg
Phone: 06421/28-1722
Fax: 06421/28-4858
Web page: http://www.uni-marburg.de/fb02/
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  1. Volker Nocke & Stephen Yeaple, 2006. "Globalization and Endogenous Firm Scope," NBER Working Papers 12322, National Bureau of Economic Research, Inc.
  2. Simon P. Anderson & André de Palma, 2003. "Market Performance With Multiproduct Firms," Virginia Economics Online Papers 357, University of Virginia, Department of Economics.
  3. Andrew Bernard & Stephen Redding & Peter Schott, 2009. "Multi-Product Firms and Trade Liberalization," Working Papers 09-21, Center for Economic Studies, U.S. Census Bureau.
  4. Peter Neary & Carsten Eckel, 2006. "Multi-Product Firms and Flexible Manufacturing in the Global Economy," Economics Series Working Papers 292, University of Oxford, Department of Economics.
  5. Marc J. Melitz & Gianmarco I.P. Ottaviano, 2005. "Market Size, Trade, and Productivity," Development Working Papers 201, Centro Studi Luca d\'Agliano, University of Milano.
  6. Brambilla, Irene, 2009. "Multinationals, technology, and the introduction of varieties of goods," Journal of International Economics, Elsevier, vol. 79(1), pages 89-101, September.
  7. Hélène ERKEL-ROUSSE, 1997. "Endogenous Differentiation Strategies, Comparative Advantage and the Volume of Trade," Annales d'Economie et de Statistique, ENSAE, issue 47, pages 121-149.
  8. Gu, Wulong & Baldwin, John R., 2006. "The Impact of Trade on Plant Scale, Production-Run Length and Diversification," Economic Analysis (EA) Research Paper Series 2006038e, Statistics Canada, Analytical Studies Branch.
  9. Allanson, Paul & Montagna, Catia, 2005. "Multiproduct firms and market structure: An explorative application to the product life cycle," International Journal of Industrial Organization, Elsevier, vol. 23(7-8), pages 587-597, September.
  10. Robert Feenstra & Hong Ma, 2007. "Optimal Choice of Product Scope for Multiproduct Firms under Monopolistic Competition," NBER Working Papers 13703, National Bureau of Economic Research, Inc.
  11. Eckel, Carsten, 2006. "Trade and diversity: Is there a case for ’cultural protectionism?’," Munich Reprints in Economics 20535, University of Munich, Department of Economics.
  12. Carsten Eckel, 2009. "Endogenous Sunk Costs, Flexible Manufacturing and the Productivity Effects of International Trade," Scandinavian Journal of Economics, Wiley Blackwell, vol. 111(2), pages 369-386, 06.
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