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National Oligopolies and Economic Geography

  • Barbara Annicchiarico

    ()

    (Department of Economics - University of Rome “Tor Vergata”)

  • Federica Orioli

    ()

    (University of Rome "Luiss Guido Carli" - University of Rome "Luiss Guido Carli")

  • Federico Trionfetti

    ()

    (GREQAM - Groupement de Recherche en Économie Quantitative d'Aix-Marseille - Université Paul Cézanne - Aix-Marseille 3 - Université de la Méditerranée - Aix-Marseille 2 - EHESS - École des hautes études en sciences sociales - CNRS - AMU - Aix-Marseille Université)

We replace monopolistic competition with national oligopolies in a model of "new economic geography". There are many possible bifurcation diagrams but, unlike in monopolistic competition, the symmetric equilibrium is always stable for low trade costs. The antitrust policy, though identical in both countries, affects the geographical distribution of firms. In turn, migration attenuates the effectiveness of the antitrust policy in eliminating collusive behavior. For high trade costs a toughening of the antitrust policy is likely to result in more agglomeration and may reduce world welfare. The antitrust policy is more likely to be welfare improving when market integration progresses.

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Date of creation: 10 Jul 2011
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Handle: RePEc:hal:wpaper:halshs-00607641
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  1. Keith Head & Thierry Mayer, 2000. "Non-Europe: The magnitude and causes of market fragmentation in the EU," Review of World Economics (Weltwirtschaftliches Archiv), Springer;Institut für Weltwirtschaft (Kiel Institute for the World Economy), vol. 136(2), pages 284-314, June.
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  4. Rodney D. Ludema & Ian Wooton, 1998. "Economic Geography and the Fiscal Effects of Regional Integration," Working Papers 9809, Business School - Economics, University of Glasgow.
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  7. McCallum, John, 1995. "National Borders Matter: Canada-U.S. Regional Trade Patterns," American Economic Review, American Economic Association, vol. 85(3), pages 615-23, June.
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  9. Haiwen Zhou, 2007. "Oligopolistic Competition And Economic Geography," Journal of Regional Science, Wiley Blackwell, vol. 47(5), pages 915-933.
  10. Gianmarco Ottaviano & Takatoshi Tabuchi & Jacques-FranÁois Thisse, 2002. "Agglomeration and Trade Revisited," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 43(2), pages 409-436, May.
  11. Krugman, Paul, 1991. "Increasing Returns and Economic Geography," Journal of Political Economy, University of Chicago Press, vol. 99(3), pages 483-99, June.
  12. Brulhart, Marius & Trionfetti, Federico, 2004. "Public expenditure, international specialisation and agglomeration," European Economic Review, Elsevier, vol. 48(4), pages 851-881, August.
  13. Connor, John M., 2005. "Price-Fixing Overcharges: Legal And Economic Evidence," 2005 Annual meeting, July 24-27, Providence, RI 19254, American Agricultural Economics Association (New Name 2008: Agricultural and Applied Economics Association).
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