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Common ownership, institutional investors, and welfare

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  • Oz Shy
  • Rune Stenbacka

Abstract

This study evaluates the effects of institutional investors' common ownership of firms competing in the same market. Overall, common ownership has two opposing effects: (a) it serves as a device for weakening market competition, and (b) it induces diversification, thereby reducing portfolio risk. We conduct a detailed welfare analysis within which the competition‐softening effects of an increased degree of common ownership is weighted against the associated diversification benefits.

Suggested Citation

  • Oz Shy & Rune Stenbacka, 2020. "Common ownership, institutional investors, and welfare," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 29(3), pages 706-723, July.
    • Handle: RePEc:bla:jemstr:v:29:y:2020:i:3:p:706-723
    DOI: 10.1111/jems.12380
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    References listed on IDEAS

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    Cited by:

    1. Ji Sun & Leonard F. S. Wang, 2023. "Vertical cross‐ownership, input price discrimination, and social welfare," International Journal of Economic Theory, The International Society for Economic Theory, vol. 19(2), pages 290-308, June.
    2. Moreno, Diego & Petrakis, Emmanuel, 2022. "The impact on market outcomes of the portfolio selection of large equity investors," Economics Letters, Elsevier, vol. 212(C).
    3. Xingtang Wang & Leonard F. S. Wang, 2023. "Vertical shareholding, vertical product differentiation and social welfare," Metroeconomica, Wiley Blackwell, vol. 74(3), pages 478-494, July.
    4. Arijit Mukherjee, 2023. "Losses from cross-holdings in a duopoly with convex cost and strategic input price determination," Economic Theory Bulletin, Springer;Society for the Advancement of Economic Theory (SAET), vol. 11(1), pages 81-91, April.

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