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To Regulate Or To Deregulate? The Role Of Downstream Competition In Upstream Monopoly Vertically Linked Markets

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  • Michael Polemis
  • Konstantinos Eleftheriou

Abstract

This paper attempts to cast light to the effect of monopoly regulation in Cournot markets compared to its effect in Bertrand markets. To this purpose, we use a simple model of a vertically linked market, where an upstream regulated natural monopoly is trading via two†part tariff contracts with a downstream duopoly. Combining our results to those of the existing literature on deregulated markets, we argue that when the downstream competition is in prices, efficiency dictates regulating the monopoly with a marginal cost based pricing scheme. However, this type of regulation leads to significant welfare loss, when the downstream market is characterized by Cournot competition.

Suggested Citation

  • Michael Polemis & Konstantinos Eleftheriou, 2018. "To Regulate Or To Deregulate? The Role Of Downstream Competition In Upstream Monopoly Vertically Linked Markets," Bulletin of Economic Research, Wiley Blackwell, vol. 70(1), pages 51-63, January.
  • Handle: RePEc:bla:buecrs:v:70:y:2018:i:1:p:51-63
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    File URL: https://doi.org/10.1111/boer.12116
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    JEL classification:

    • L43 - Industrial Organization - - Antitrust Issues and Policies - - - Legal Monopolies and Regulation or Deregulation
    • L51 - Industrial Organization - - Regulation and Industrial Policy - - - Economics of Regulation

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