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Semi-collusion in media markets


  • Dewenter, Ralf
  • Haucap, Justus
  • Wenzel, Tobias


This paper explores the effects that collusion can have in newspaper markets where firms compete for advertising as well as for readership. We compare three modes of competition: i) competition in the advertising and the reader market, ii) semi-collusion over advertising (with competition in the reader market), and iii) (full) collusion in both the advertising and the reader market. We find that semi-collusion leads to less advertising (but higher advertising prices) and lower copy prices which is beneficial for readers. Under certain circumstances, semi-collusion may even benefit advertisers as newspaper circulation is higher. In addition, total welfare may rise due to semi-collusion. Results under full collusion are ambiguous. However, even under full collusion newspaper copy prices may decrease and welfare may increase.

Suggested Citation

  • Dewenter, Ralf & Haucap, Justus & Wenzel, Tobias, 2010. "Semi-collusion in media markets," DICE Discussion Papers 11, University of Düsseldorf, Düsseldorf Institute for Competition Economics (DICE).
  • Handle: RePEc:zbw:dicedp:11

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    References listed on IDEAS

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    Cited by:

    1. Marco Antonielli & Lapo Filistrucchi, 2011. "Collusion and the political differentiation of newspapers," Working Papers 11-26, NET Institute, revised Nov 2011.
    2. Anderson, Simon P. & Jullien, Bruno, 2016. "The advertising-financed business model in two-sided media markets," TSE Working Papers 16-632, Toulouse School of Economics (TSE).
    3. Matthew Gentzkow & Jesse M. Shapiro & Michael Sinkinson, 2014. "Competition and Ideological Diversity: Historical Evidence from US Newspapers," American Economic Review, American Economic Association, vol. 104(10), pages 3073-3114, October.
    4. Gu, Yiquan & Wenzel, Tobias, 2012. "Transparency, entry, and productivity," Economics Letters, Elsevier, vol. 115(1), pages 7-10.
    5. Dewenter, Ralf & Heimeshoff, Ulrich, 2011. "Media Bias and Advertising: Evidence from German Car Magazines," Annual Conference 2011 (Frankfurt, Main): The Order of the World Economy - Lessons from the Crisis 48691, Verein für Socialpolitik / German Economic Association.
    6. Budzinski, Oliver, 2017. "Wettbewerbsregeln für das Digitale Zeitalter - Die Ökonomik personalisierter Daten, Verbraucherschutz und die 9. GWB-Novelle," Ilmenau Economics Discussion Papers 108, Ilmenau University of Technology, Institute of Economics.
    7. Haucap, Justus & Herr, Annika & Frank, Björn, 2011. "In vino veritas: Theory and evidence on social drinking," DICE Discussion Papers 37, University of Düsseldorf, Düsseldorf Institute for Competition Economics (DICE).
    8. Clémence Christin, 2013. "Entry Deterrence Through Cooperative R&D Over-Investment," Recherches économiques de Louvain, De Boeck Université, vol. 79(2), pages 5-26.
    9. Stühmeier Torben & Wenzel Tobias, 2012. "Regulating Advertising in the Presence of Public Service Broadcasting," Review of Network Economics, De Gruyter, vol. 11(2), pages 1-23, June.
    10. S. Sriram & Puneet Manchanda & Mercedes Bravo & Junhong Chu & Liye Ma & Minjae Song & Scott Shriver & Upender Subramanian, 2015. "Platforms: a multiplicity of research opportunities," Marketing Letters, Springer, vol. 26(2), pages 141-152, June.
    11. Yassine Lefouili & Joana Pinho, 2017. "Collusion in Two-Sided Markets," Working Papers 17-05, NET Institute.
    12. Federico Boffa & Lapo Filistrucchi, 2014. "Optimal Cartel Prices in Two-Sided Markets Access," Working Papers 14-19, NET Institute.

    More about this item


    Media Markets; Collusion; Two-Sided Markets;

    JEL classification:

    • L40 - Industrial Organization - - Antitrust Issues and Policies - - - General
    • L82 - Industrial Organization - - Industry Studies: Services - - - Entertainment; Media
    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • K21 - Law and Economics - - Regulation and Business Law - - - Antitrust Law

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