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- W4283769103 abstract "We investigate how opening price manipulation influences market behaviors and investors' returns. Analyzing direct evidence comprising 87 opening price manipulation cases, and indirect evidence consisting of 19,003 suspected cases detected by an opening price manipulation identification model that we construct, we examine the impact of manipulation on mispricing, investors' welfare, trading activity and price volatility. Our results indicate that manipulated stocks experience significantly lower returns and a higher probability of price reversal after manipulation. Investors who purchase manipulated stocks at their opening price, or the volume-weighted average price, on the manipulation day make losses on their investments. Further, manipulation increases market trading activity and price volatility due to the influx of retail investors. Our additional analysis demonstrates that enhancing the intensity of external supervision and internal governance can mitigate mispricing caused by opening price manipulation. Our study provides novel evidence of the economic consequences of open market manipulation and policy implications for governments and regulators to develop effective supervisory processes to reduce manipulation and mitigate its impact on efficient markets. • Manipulated stocks display lower short-term returns and higher probabilities of price reversal than non-manipulated stocks. • Investors who buy manipulated stocks, either at opening prices or volume-weighted average prices, suffer investment losses. • Manipulation increases trading activity both on the manipulation day and on the days following manipulation. • Manipulation attracts an influx of retail investors, which increases price volatility. • Effective external supervision and internal governance can reduce the degree of mispricing." @default.
- W4283769103 created "2022-07-03" @default.
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- W4283769103 date "2022-10-01" @default.
- W4283769103 modified "2023-10-02" @default.
- W4283769103 title "Opening price manipulation and its value influences" @default.
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- W4283769103 doi "https://doi.org/10.1016/j.irfa.2022.102256" @default.
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