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arXiv 1404.7632q-fin.STmath.PR
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金融指数的多变量模型及波动率跳跃检测算法

A multivariate model for financial indices and an algorithm for detection of jumps in the volatility

Mario Bonino, Matteo Camelia, Paolo Pigato

摘要:

本文考虑了一个均值回复的随机波动率模型,它满足金融市场的一些相关的程式化事实。我们介绍了一种算法,用于检测波动率曲线中的峰值,我们将其应用于1984-2013年期间的道琼斯工业平均指数和金融时报证券交易所100指数的时间序列。基于实证结果,我们提出了一个双变量版本的模型,我们发现一个明确的表达式,随着时间的推移,绝对收益率之间的交叉资产相关性的衰减。我们比较我们的理论预测与经验估计相同的金融时间序列,发现一个很好的协议。

英文摘要:

We consider a mean-reverting stochastic volatility model which satisfies some relevant stylized facts of financial markets. We introduce an algorithm for the detection of peaks in the volatility profile, that we apply to the time series of Dow Jones Industrial Average and Financial Times Stock Exchange 100 in the period 1984-2013. Based on empirical results, we propose a bivariate version of the model, for which we find an explicit expression for the decay over time of cross-asset correlations between absolute returns. We compare our theoretical predictions with empirical estimates on the same financial time series, finding an excellent agreement.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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