分析师分歧与总波动率风险

A. Barinov
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引用次数: 45

摘要

本文解释了分析师预测高度分散的公司未来收益较低的原因。这些公司在总波动率增加的时期优于CAPM,从而提供对总波动率风险的对冲。总波动风险因子可以解释高、低分歧企业的异常收益差异。对于拥有大量实物期权的公司,这种收益差异更高,这一事实可以用总波动率风险来解释。总波动风险也可以解释,为什么分析师的意见分歧与未来回报之间的联系,对于有高度卖空限制的公司来说更为紧密。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Analyst Disagreement and Aggregate Volatility Risk
The paper explains why firms with high dispersion of analyst forecasts earn low future returns. These firms beat the CAPM in periods of increasing aggregate volatility and thereby provide a hedge against aggregate volatility risk. The aggregate volatility risk factor can explain the abnormal return differential between high and low disagreement firms. This return differential is higher for firms with abundant real options, and this fact can be explained by aggregate volatility risk. Aggregate volatility risk can also explain why the link between analyst disagreement and future returns is stronger for firms with high short-sale constraints.
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