《Asymmetry of cross correlations between intra-day and overnight
volatilities》
---
作者:
Rubina Zadourian, Peter Grassberger
---
最新提交年份:
2015
---
英文摘要:
We point out a stunning time asymmetry in the short time cross correlations between intra-day and overnight volatilities (absolute values of log-returns of stock prices). While overnight volatility is significantly (and positively) correlated with the intra-day volatility during the \\textit{following} day (allowing thus non-trivial predictions), it is much less correlated with the intra-day volatility during the \\textit{preceding} day. While the effect is not unexpected in view of previous observations, its robustness and extreme simplicity are remarkable.
---
中文摘要:
我们指出,在日间和隔夜波动率(股票价格对数收益的绝对值)之间的短期交叉相关性中,存在着惊人的时间不对称性。虽然隔夜波动率与次日的日内波动率显著(且正)相关(因此允许进行非平凡的预测),但与前一日的日内波动率的相关性要小得多。虽然从之前的观察来看,这种效果并不意外,但其鲁棒性和极端简单性是显著的。
---
分类信息:
一级分类:Quantitative Finance 数量金融学
二级分类:Statistical Finance 统计金融
分类描述:Statistical, econometric and econophysics analyses with applications to financial markets and economic data
统计、计量经济学和经济物理学分析及其在金融市场和经济数据中的应用
--
---
PDF下载:
-->
Asymmetry_of_cross_correlations_between_intra-day_and_overnight_volatilities.pdf
(380.22 KB)


雷达卡



京公网安备 11010802022788号







