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A Dynamic Model of Trade with Heterogeneous Firms

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  • Peter Arendorf Bache

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    (Department of Economics and Business, Aarhus University, Denmark)

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    Abstract

    This paper builds a dynamic general equilibrium trade model, in which heterogeneous intermediate goods are produced and traded in a Melitz (2003) type sector. These intermediate goods are used in the production of a final good, which can be used for consumption, capital accumulation, or investment in market entry. Therefore capital accumulation is the direct alternative to investing in firm entry. This has a number of implications. First, in the short run following trade liberalizations a higher interest rate will prevail, which will tend to shelter incumbent firms from increased competition by discouraging investment in entry of new firms. Second, different forms of trade liberalizations with the same impact on the share of expenditure on domestic variety will have different effects on consumption, and thus welfare, both during transitions and in steady-state, due to different effects on aggregate investment. Third, the accumulation of capital will add a time dimension to the anti-variety effects of trade liberalizations. In effect, capital accumulation generates rich adjustment dynamics both in the aggregate and at the firm level. Further, the study of transitions in this framework provides important insights regarding the effects of different forms of trade liberalizations in general and on welfare and individual firms in particular.

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    Bibliographic Info

    Paper provided by School of Economics and Management, University of Aarhus in its series Economics Working Papers with number 2012-03.

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    Length: 38
    Date of creation: 04 Jan 2012
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    Handle: RePEc:aah:aarhec:2012-03

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    Web page: http://www.econ.au.dk/afn/

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    1. Baldwin, Richard & Robert-Nicoud, Frédéric, 2006. "Trade and Growth with Heterogenous Firms," CEPR Discussion Papers 5563, C.E.P.R. Discussion Papers.
    2. Jonathan Eaton & Samuel Kortum & Francis Kramarz, 2008. "An Anatomy of International Trade: Evidence from French Firms," NBER Working Papers 14610, National Bureau of Economic Research, Inc.
    3. Andrew Atkeson & Ariel Burstein, 2007. "Innovation, firm dynamics, and international trade," NBER Working Papers 13326, National Bureau of Economic Research, Inc.
    4. Melitz, Marc J, 2002. "The Impact of Trade on Intra-Industry Reallocations and Aggregate Industry Productivity," CEPR Discussion Papers 3381, C.E.P.R. Discussion Papers.
    5. Ariel Burstein & Marc J. Melitz, 2011. "Trade Liberalization and Firm Dynamics," NBER Working Papers 16960, National Bureau of Economic Research, Inc.
    6. Trimborn, Timo & Koch, Karl-Josef & Steger, Thomas M., 2008. "Multidimensional Transitional Dynamics: A Simple Numerical Procedure," Macroeconomic Dynamics, Cambridge University Press, vol. 12(03), pages 301-319, June.
    7. Paul Romer, 1989. "Endogenous Technological Change," NBER Working Papers 3210, National Bureau of Economic Research, Inc.
    8. George Alessandria & Horag Choi, 2011. "Establishment heterogeneity, exporter dynamics, and the effects of trade liberalization," Working Papers 11-19, Federal Reserve Bank of Philadelphia.
    9. Fabio Ghironi & Marc Melitz, 2004. "International Trade and Macroeconomic Dynamics with Heterogeneous Firms," 2004 Meeting Papers 451, Society for Economic Dynamics.
    10. Rivera-Batiz, Luis A & Romer, Paul M, 1991. "Economic Integration and Endogenous Growth," The Quarterly Journal of Economics, MIT Press, vol. 106(2), pages 531-55, May.
    11. Krugman, Paul R., 1979. "Increasing returns, monopolistic competition, and international trade," Journal of International Economics, Elsevier, vol. 9(4), pages 469-479, November.
    12. Ethier, Wilfred J, 1982. "National and International Returns to Scale in the Modern Theory of International Trade," American Economic Review, American Economic Association, vol. 72(3), pages 389-405, June.
    13. Thomas Chaney, 2008. "Distorted Gravity: The Intensive and Extensive Margins of International Trade," American Economic Review, American Economic Association, vol. 98(4), pages 1707-21, September.
    14. Christian Broda & Joshua Greenfield & David Weinstein, 2006. "From Groundnuts to Globalization: A Structural Estimate of Trade and Growth," NBER Working Papers 12512, National Bureau of Economic Research, Inc.
    15. Roberts, Mark J & Tybout, James R, 1997. "The Decision to Export in Colombia: An Empirical Model of Entry with Sunk Costs," American Economic Review, American Economic Association, vol. 87(4), pages 545-64, September.
    16. Sanghamitra Das & Mark J. Roberts & James R. Tybout, 2001. "Market entry costs, producer heterogeneity and export dynamics," Indian Statistical Institute, Planning Unit, New Delhi Discussion Papers 03-10, Indian Statistical Institute, New Delhi, India.
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