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Disagreement about public information quality and informational price efficiency

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  • Huang, Chong
  • Lunawat, Radhika
  • Wang, Qiguang

Abstract

Investors often hold differing opinions on public information quality. This paper shows that such investor disagreement provides a novel explanation for financial market dynamics around earnings announcements. We propose a rational expectations equilibrium model where investors disagree about the precision of a public signal, which separates a pre-news trading period from a post-news trading period. In equilibrium, investor disagreement about public signal precision diminishes informational price efficiency before the news, but enhances it afterward. Consequently, investor disagreement leads to a notable jump in informed trading around the news, a decline in abnormal trading volume before the news and a surge immediately after the news, and underreaction of stock price to announced earnings.

Suggested Citation

  • Huang, Chong & Lunawat, Radhika & Wang, Qiguang, 2024. "Disagreement about public information quality and informational price efficiency," Journal of Financial Economics, Elsevier, vol. 152(C).
    • Handle: RePEc:eee:jfinec:v:152:y:2024:i:c:s0304405x23002027
    DOI: 10.1016/j.jfineco.2023.103762
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    References listed on IDEAS

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    More about this item

    Keywords

    Investor disagreement; Informational price efficiency; Dynamic REE model; Trading volume; Price underreaction;
    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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