记同学2020-02-26 10:16:38
老师,R9第15题,怎么理解技术分析通过 short- term under-reaction to relevant information, and longer term over- reaction获取投资机会。短期为什么会under-reaction,长期为什么over-reaction?
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Chris Lan2020-02-28 10:06:51
同学你好
这个结论是原版书上的原话。
Momentum can be partly explained by short-term underreaction to relevant information, and longer-term overreaction. Investors’ bias to sell winners reflects anchoring on the purchase price. Investors’ willingness to sell winners may also be the result of a belief that a price rise has brought increased risk, irrespective of whether intrinsic value has also increased. The belief in mean reversion can cause investors to underreact to positive news, and stock prices to take time to reflect fully more favorable news or earnings upgrades.
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