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A CCAPM with Time-varying Betas and Its Applications in Chinese Stock Market

机译:Beta随时间变化的CCAPM及其在中国股市中的应用

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摘要

Investors usually require premiums to compensate those components of risk that cannot be diversified away. Investors' risk premiums is changing with the business cycles. In this paper we study the CCAPM allowing for the time-varying beta. The time-varying betas are estimated from GARCH model. Prom the estimation results, we can see that the systematic risk coefficient betas of certain industry change when the volatility changes.
机译:投资者通常需要保费来补偿无法分散的风险部分。投资者的风险溢价随着商业周期的变化而变化。在本文中,我们研究允许时变beta的CCAPM。随时间变化的beta是根据GARCH模型估算的。从估算结果中可以看出,当波动率发生变化时,某些行业的系统风险系数beta会发生变化。

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