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- W4280493991 abstract "This paper examines the impact of sentiment in an online message forum on stock returns. Using a novel controlled experiment, we collect a large panel of messages with no fundamental information but strong sentiment and stock return data. We find a significant causal effect of social media sentiment on the same-day stock returns. The sentiment has no significant effects on stock returns on subsequent days. This effect is mainly driven by messages with positive sentiment, which has a strong positive impact on stock returns. Our results establish a causal relationship between social media sentiment and stock returns and highlight the risk of market manipulation via social media." @default.
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- W4280493991 date "2022-07-01" @default.
- W4280493991 modified "2023-10-02" @default.
- W4280493991 title "The causal relationship between social media sentiment and stock return: Experimental evidence from an online message forum" @default.
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- W4280493991 doi "https://doi.org/10.1016/j.econlet.2022.110598" @default.
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