Monopolistic Competition, International Trade and Firm Heterogeneity - a Life Cycle Perspective
This paper presents a dynamic international trade model based on monopolistic competition, where observed intra-industry differences at a given point in time reflect different stages of the firm’s life cycle. New product varieties of still higher quality enter the market every period rendering old varieties obsolescent in a process of creative destruction. For given technology (variety) production costs decrease after an infant period due to learning. It is shown that several patterns of exports may arise depending primarily on the size of fixed trade costs. At a given point in time firms therefore differ due to different age, although all firms are symmetric in a life cycle perspective. The paper thus offers an alternative view on firm heterogeneity compared with other recent papers, where productivity differences appear as an outcome of a stochastic process.
|Date of creation:||01 May 2008|
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- Aghion, Philippe & Howitt, Peter, 1992.
"A Model of Growth through Creative Destruction,"
Econometric Society, vol. 60(2), pages 323-51, March.
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"Export versus FDI with Heterogeneous Firms,"
3229098, Harvard University Department of Economics.
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- Catia Montagna, 1998.
"Efficiency Gaps, Love of Variety and International Trade,"
Dundee Discussion Papers in Economics
090, Economic Studies, University of Dundee.
- Montagna, Catia, 2001. "Efficiency Gaps, Love of Variety and International Trade," Economica, London School of Economics and Political Science, vol. 68(269), pages 27-44, February.
- C. Lanier Benkard, 2000. "Learning and Forgetting: The Dynamics of Aircraft Production," American Economic Review, American Economic Association, vol. 90(4), pages 1034-1054, September.
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- Harris, Christopher & Howitt, Peter & Vickers, John & Aghion, Philippe, 2001. "Competition, Imitation and Growth with Step-by-Step Innovation," Scholarly Articles 12375013, Harvard University Department of Economics.
- Krugman, Paul R., 1979. "Increasing returns, monopolistic competition, and international trade," Journal of International Economics, Elsevier, vol. 9(4), pages 469-479, November.
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