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Mergers and Investments in New Products

Author

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  • D’Annunzio, Anna
  • Jullien, Bruno
  • Lefouili, Yassine
  • Madio, Leonardo

Abstract

This paper examines how horizontal mergers affect firms’ incentives to invest in R&D leading to the development of new products. We characterize the impact of a merger to monopoly and a 3-to-2 merger on equilibrium innovation efforts and consumer surplus, absent efficiency gains and spillovers. We show that a 3-to-2 merger directly alters the outsider’s innovation incentives by shifting its best-response function upward, and we analyze how this mechanism affects merger outcomes for innovation and consumer surplus. Finally, we examine how efficiency gains and remedies modify post-merger innovation efforts.

Suggested Citation

  • D’Annunzio, Anna & Jullien, Bruno & Lefouili, Yassine & Madio, Leonardo, 2018. "Mergers and Investments in New Products," TSE Working Papers 18-949, Toulouse School of Economics (TSE), revised Mar 2026.
    • Handle: RePEc:tse:wpaper:32923
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    References listed on IDEAS

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    1. Jean Tirole, 1988. "The Theory of Industrial Organization," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262200716, December.
    2. Motta, Massimo & Tarantino, Emanuele, 2021. "The effect of horizontal mergers, when firms compete in prices and investments," International Journal of Industrial Organization, Elsevier, vol. 78(C).
    3. Federico, Giulio & Langus, Gregor & Valletti, Tommaso, 2018. "Horizontal mergers and product innovation," International Journal of Industrial Organization, Elsevier, vol. 59(C), pages 1-23.
    4. Yongmin Chen & Marius Schwartz, 2013. "Product Innovation Incentives: Monopoly vs. Competition," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 22(3), pages 513-528, September.
    5. Greenstein, Shane & Ramey, Garey, 1998. "Market structure, innovation and vertical product differentiation," International Journal of Industrial Organization, Elsevier, vol. 16(3), pages 285-311, May.
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    Cited by:

    1. Lefouili, Yassine & Madio, Leonardo, 2023. "Market Structure and Investments : A Progress Report," TSE Working Papers 23-1491, Toulouse School of Economics (TSE), revised Sep 2024.
    2. Lefouili, Yassine & Madio, Leonardo, 2026. "Mergers and investments: Where do we stand?," International Journal of Industrial Organization, Elsevier, vol. 105(C).

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    Keywords

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    JEL classification:

    • K21 - Law and Economics - - Regulation and Business Law - - - Antitrust Law
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • L40 - Industrial Organization - - Antitrust Issues and Policies - - - General

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