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Sophisticated Investors and Market Efficiency: Evidence from a Natural Experiment / Yong Chen, Bryan Kelly, Wei Wu.
- Format:
- Book
- Author/Creator:
- Chen, Yong.
- Series:
- Working Paper Series (National Bureau of Economic Research) no. w24552.
- NBER working paper series no. w24552
- Language:
- English
- Physical Description:
- 1 online resource: illustrations (black and white);
- Other Title:
- Sophisticated Investors and Market Efficiency
- Place of Publication:
- Cambridge, Mass. National Bureau of Economic Research 2018.
- Summary:
- We study how sophisticated investors, when faced with changes in information environment, adjust their information acquisition and trading behavior, and how these changes in turn affect market efficiency. We find that, after exogenous reductions of analyst coverage due to closures of brokerage firms, hedge funds scale up information acquisition. They trade more aggressively and earn higher abnormal returns on the affected stocks. Moreover, the participation of hedge fund significantly mitigates the impairment of market efficiency caused by coverage reductions. Our results show a substitution effect between sophisticated investors and public information providers in facilitating market efficiency in a causal framework.
- Notes:
- Print version record
- April 2018.
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