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How does an online influencer manipulate the stock market?

Author

Listed:
  • Zhang, Zhigang
  • Zhang, Qiang
  • Liu, Shancun
  • Wang, Jiarui

Abstract

We construct a two-period Kyle model to investigate how a financial online influencer manipulates the stock market. Given that an online influencer usually has many loyal fans, he first places a random order in the market and transmits its signal to his fans, and then engages in predatory trading in the second period. We provide a sufficient condition for the motivation of the influencer manipulating the market. With the increase in the number and the level of fans' loyalty, the market liquidity is improved while the influencer enhances the intensity of predatory trading resulting in worse deteriorated price informativeness.

Suggested Citation

  • Zhang, Zhigang & Zhang, Qiang & Liu, Shancun & Wang, Jiarui, 2023. "How does an online influencer manipulate the stock market?," Finance Research Letters, Elsevier, vol. 58(PA).
    • Handle: RePEc:eee:finlet:v:58:y:2023:i:pa:s1544612323007031
    DOI: 10.1016/j.frl.2023.104331
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    References listed on IDEAS

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    More about this item

    Keywords

    Online influencer; Predatory trading; Market quality; Price informativeness;
    All these keywords.

    JEL classification:

    • D80 - Microeconomics - - Information, Knowledge, and Uncertainty - - - General
    • G4 - Financial Economics - - Behavioral Finance

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