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The importance of consumer multi-homing (joint purchases) for market performance: mergers and entry in media markets

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  • Anderson, Simon
  • Foros, Øystein
  • Kind, Hans Jarle

Abstract

Consumer "multi-homing" (watching two TV channels, or buying two news magazines) has surprisingly important effects on market equilibrium and performance in (two-sided) media markets. We show this by introducing consumer multi-homing and advertising-finance into the classic circle model of product differentiation. When consumers multi-home (attend more than one platform), media platforms can charge only incremental-value prices to advertisers. Entry or merger leaves consumer prices unchanged under consumer multi-homing, but leaves advertiser prices unchanged under single-homing: multi-homing flips the side of the market on which platforms compete. In contrast to standard circle results, equilibrium product variety can be insufficient under multi-homing.

Suggested Citation

  • Anderson, Simon & Foros, Øystein & Kind, Hans Jarle, 2018. "The importance of consumer multi-homing (joint purchases) for market performance: mergers and entry in media markets," CEPR Discussion Papers 13022, C.E.P.R. Discussion Papers.
  • Handle: RePEc:cpr:ceprdp:13022
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    Cited by:

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    2. Feng Zhu & Xinxin Li & Ehsan Valavi & Marco Iansiti, 2021. "Network Interconnectivity and Entry into Platform Markets," Information Systems Research, INFORMS, vol. 32(3), pages 1009-1024, September.
    3. Joao Correia‐da‐Silva & Bruno Jullien & Yassine Lefouili & Joana Pinho, 2019. "Horizontal mergers between multisided platforms: Insights from Cournot competition," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 28(1), pages 109-124, January.
    4. Bruno Jullien & Alessandro Pavan & Marc Rysman, 2021. "Two-sided markets, pricing, and network effects," Post-Print hal-03828345, HAL.
    5. Evensen, Charlotte Bjørnhaug & Haugen, Atle, 2021. "The impact of targeting technologies and consumer multi-homing on digital platform competition," Discussion Paper Series in Economics 13/2021, Norwegian School of Economics, Department of Economics.
    6. Esther Gal-Or & Qiaoni Shi, 2022. "Designing Entry Strategies for Subscription Platforms," Management Science, INFORMS, vol. 68(10), pages 7597-7613, October.
    7. Tremblay, Mark J. & Adachi, Takanori & Sato, Susumu, 2023. "Cournot platform competition with mixed-homing," International Journal of Industrial Organization, Elsevier, vol. 91(C).
    8. Vartanov, Sergey, 2020. "Производство, Потребление И Медиа: К Постановке Модели Трехстороннего Рынка [Production, consumption and media: towards formulating a three-sided market model]," MPRA Paper 104553, University Library of Munich, Germany.
    9. Juan Manuel Sanchez‐Cartas & Gonzalo León, 2021. "Multisided Platforms And Markets: A Survey Of The Theoretical Literature," Journal of Economic Surveys, Wiley Blackwell, vol. 35(2), pages 452-487, April.
    10. Xingzhen Zhu & Markus Lang & Helmut Dietl, 2022. "Content Quality Assurance on Media Platforms with User-Generated Content," Working Papers 395, University of Zurich, Department of Business Administration (IBW).
    11. Takanori Adachi & Susumu Sato & Mark J. Tremblay, 2023. "Platform Oligopoly with Endogenous Homing: Implications for Mergers and Free Entry," Journal of Industrial Economics, Wiley Blackwell, vol. 71(4), pages 1203-1232, December.
    12. Federico Boffa & Amedeo Piolatto & Evila Piva & Florian Schuett, 2022. "Industry dynamics in digital markets," Economia e Politica Industriale: Journal of Industrial and Business Economics, Springer;Associazione Amici di Economia e Politica Industriale, vol. 49(3), pages 401-407, September.
    13. Singh, Neeraj & Kumar, Niraj & Kapoor, Sanjeev, 2022. "Consumer multihoming predisposition on food platforms: Does gender matter?," Journal of Retailing and Consumer Services, Elsevier, vol. 67(C).
    14. Baranes, Edmond & Cortade, Thomas & Cosnita-Langlais, Andreea, 2019. "Horizontal mergers on platform markets: cost savings v. cross-group network effects?," MPRA Paper 97459, University Library of Munich, Germany.

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    Keywords

    Media platforms; Circle model; Equilibrium product variety; Multi-homing;
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