摘要
引入了基于日内价格幅度与回报两个测度指标的随机波动性模型.利用中国股市数据进行的实证结果表明,与单测度指标的随机波动性模型相比,基于两个测度指标的随机波动性模型能更好地描述股票市场波动性和市场波动风险.
A stochastic volatility model based on two indices, i.e., daily returns and intra-daily high-low price range is proposed. Empirical results on Chinese stock market indicate that stochastic volatility model based on the two above indices outperforms those based on one index in capturing volatility character and market risk.
出处
《上海理工大学学报》
EI
CAS
北大核心
2007年第5期495-501,共7页
Journal of University of Shanghai For Science and Technology
基金
上海市重点学科建设资助项目(T0502)
关键词
波动性建模
日内价格幅度
日间回报
随机波动性模型
风险价值
volatility modeling
intra-daily high-doze price range
inter-daily returns
stochastic volatility model
value at risk