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arXiv 0810.1625q-fin.STphysics.soc-ph
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波动率对金融市场模型逃逸时间的影响

Volatility Effects on the Escape Time in Financial Market Models

Bernardo Spagnolo, Davide Valenti

摘要:

我们简要回顾了逃逸时间的统计特性,或击中时间,股票价格收益率使用不同的模型,描述了股票市场的演变。我们比较这些逃逸时间的概率函数(PF)与从真实市场数据中获得的。然后详细分析了噪声和不同初始条件对具有随机波动率和三次非线性的市场模型逃逸时间的影响。对于这个模型,我们比较了股票价格收益率的PF,波动率的PF和收益相关性与从真实市场数据中获得的相同的统计特征。

英文摘要:

We shortly review the statistical properties of the escape times, or hitting times, for stock price returns by using different models which describe the stock market evolution. We compare the probability function (PF) of these escape times with that obtained from real market data. Afterwards we analyze in detail the effect both of noise and different initial conditions on the escape time in a market model with stochastic volatility and a cubic nonlinearity. For this model we compare the PF of the stock price returns, the PF of the volatility and the return correlation with the same statistical characteristics obtained from real market data.

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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