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The failure of online endorsement systems in investment communities: evidence from Yahoo! Finance.
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- Author(s): Xie, Peng1 (AUTHOR) ; Du, Hongwei1 (AUTHOR) ; Wu, Jiming1 (AUTHOR) ; Chen, Ting2 (AUTHOR)
- Source:
Information Technology & People. 2024, Vol. 37 Issue 5, p2127-2152. 26p.- Subject Terms:
- Source:
- Additional Information
- Abstract: Purpose: In prior literature, online endorsement system allowing the users to "like" or "dislike" shared information is found very useful in information filtering and trust elicitation in most social networks. This paper shows that such systems could fail in the context of investment communities due to several psychological biases. Design/methodology/approach: This study develops a series of regression analyses to model the "like"/"dislike" voting process and whether or not such endorsement distinguishes between valuable information and noise. Trading simulations are also used to validate the practical implications of the findings. Findings: The main findings of this research are twofold: (1) in the context of investment communities, online endorsement system fails to signify value-relevant information and (2) bullish information and "wisdom over the past event" information receive more "likes" and fewer "dislikes" on average, but they underperform in stock market price discovery. Originality/value: This study demonstrates that biased endorsement may lead to the failure of the online endorsement system as information gatekeeper in investment communities. Two underlying mechanisms are proposed and tested. This study opens up new research opportunities to investigate the causes of biased endorsement in online environment and motivates the development of alternative information filtering systems. [ABSTRACT FROM AUTHOR]
- Abstract:
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