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Investor network: Implications for information diffusion and asset prices

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  • Chung, San-Lin
  • Liu, Wenchien
  • Liu, Wen-Rang
  • Tseng, Kevin

Abstract

In this study, we examine the information diffusion of firms in investor networks. Using a unique investor account-level dataset from the Taiwan Stock Exchange from 2005 to 2014, we identify the information diffusion of firms as their centralization in investor networks. Consistent with the theory of investor information networks, we find that central investors trade earlier and are more profitable than peripheral investors. Furthermore, they have greater access to superior, private information based on actual M&A events. More importantly, we find that centralized firms (i.e., firms with more central investors' networks) experience less delay in prices, and therefore demand lower price delay premiums than peripheral firms. These results suggest that investor networks speed up the incorporation of new information into asset prices, and cause the strength of information diffusion to have a great impact on stock returns.

Suggested Citation

  • Chung, San-Lin & Liu, Wenchien & Liu, Wen-Rang & Tseng, Kevin, 2018. "Investor network: Implications for information diffusion and asset prices," Pacific-Basin Finance Journal, Elsevier, vol. 48(C), pages 186-209.
    • Handle: RePEc:eee:pacfin:v:48:y:2018:i:c:p:186-209
    DOI: 10.1016/j.pacfin.2018.02.004
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    References listed on IDEAS

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    Cited by:

    1. Han, Rui-Qi & Li, Ming-Xia & Chen, Wei & Zhou, Wei-Xing & Stanley, H. Eugene, 2019. "Structural properties of statistically validated empirical information networks," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 523(C), pages 747-756.
    2. Wang, Hu & Li, Shouwei & Ma, Yuyin, 2021. "Herding in Open-end Funds: Evidence from China," The North American Journal of Economics and Finance, Elsevier, vol. 57(C).
    3. Ren-Yuan Lyu & Ren-Raw Chen & San-Lin Chung & Yilu Zhou, 2024. "Systemic Risk and Bank Networks: A Use of Knowledge Graph with ChatGPT," FinTech, MDPI, vol. 3(2), pages 1-28, May.
    4. khan Feroz, Noushad & Hassan, Gazi & Cameron, Michael P., 2022. "To what extent do network effects moderate the relationship between social media propagated news and investors’ perceptions?," Research in Economics, Elsevier, vol. 76(3), pages 170-188.

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    More about this item

    Keywords

    Investor network; Information diffusion; Price delay; Asset prices;
    All these keywords.

    JEL classification:

    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading

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