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Looking at the Cost Side of “Monopoly”

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  • Karl Aiginger
  • Michael Pfaffermayr

Abstract

Welfare loss under oligopoly is defined as that part of consumer surplus which is lost and not regained by higher profits. In a model with asymmetric firms, this implies that the total welfare loss consists of the deadweight loss triangle plus a cost side inefficiency effect, due to the fact that in imperfect markets not all firms utilize the lowest cost technique. Using a flexible CV‐model we calculate these effects empirically for two relatively homogeneous industries (pulp/paper and cement). The deadweight loss triangles are shown to be smaller than the cost difference effect (“the staircase”) for these industries.

Suggested Citation

  • Karl Aiginger & Michael Pfaffermayr, 1997. "Looking at the Cost Side of “Monopoly”," Journal of Industrial Economics, Wiley Blackwell, vol. 45(3), pages 245-267, September.
    • Handle: RePEc:bla:jindec:v:45:y:1997:i:3:p:245-267
    DOI: 10.1111/1467-6451.00048
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    Cited by:

    1. christoph Engel, 2005. "Voice over IP. Competition Policy and Regulation," Discussion Paper Series of the Max Planck Institute for Research on Collective Goods 2005_26, Max Planck Institute for Research on Collective Goods.
    2. Lars-Hendrik Röller & Frode Steen, 2006. "On the Workings of a Cartel: Evidence from the Norwegian Cement Industry," American Economic Review, American Economic Association, vol. 96(1), pages 321-338, March.
    3. Lang, Gunter & Welzel, Peter, 1999. "Mergers among German Cooperative Banks: A Panel-Based Stochastic Frontier Analysis," Small Business Economics, Springer, vol. 13(4), pages 273-286, December.
    4. Karl Aiginger & Michael Pfaffermayr, 1999. "Product Quality, Cost Asymmetry and the Welfare Loss of Oligopoly," International Journal of the Economics of Business, Taylor & Francis Journals, vol. 6(2), pages 165-180.
    5. Karl Aiginger, 2008. "The Impact of Competition on Macroeconomic Performance," Chapters, in: Klaus Gugler & B. Burcin Yurtoglu (ed.), The Economics of Corporate Governance and Mergers, chapter 14, Edward Elgar Publishing.
    6. D. P. T. Young, 2000. "Firms' Market Power, Endogenous Preferences and the Focus of Competition Policy," Review of Political Economy, Taylor & Francis Journals, vol. 12(1), pages 73-87.

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