英文标题:
《Detrending moving-average cross-correlation coefficient: Measuring
cross-correlations between non-stationary series》
---
作者:
Ladislav Kristoufek
---
最新提交年份:
2013
---
英文摘要:
In the paper, we introduce a new measure of correlation between possibly non-stationary series. As the measure is based on the detrending moving-average cross-correlation analysis (DMCA), we label it as the DMCA coefficient $\\rho_{DMCA}(\\lambda)$ with a moving average window length $\\lambda$. We analytically show that the coefficient ranges between -1 and 1 as a standard correlation does. In the simulation study, we show that the values of $\\rho_{DMCA}(\\lambda)$ very well correspond to the true correlation between the analyzed series regardless the (non-)stationarity level. Dependence of the newly proposed measure on other parameters -- correlation level, moving average window length and time series length -- is discussed as well.
---
中文摘要:
在本文中,我们引入了一种新的度量可能非平稳序列之间的相关性。由于测量基于去趋势移动平均互相关分析(DMCA),我们将其标记为DMCA系数$\\rho_{DMCA}(\\lambda)$,移动平均窗口长度$\\lambda$。我们分析表明,系数范围在-1和1之间,就像标准相关性一样。在模拟研究中,我们表明$\\rho_{DMCA}(\\lambda)$的值非常符合分析序列之间的真实相关性,无论(非)平稳性水平如何。文中还讨论了新提出的测量方法对其他参数的依赖性——相关性水平、移动平均窗口长度和时间序列长度。
---
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:
-->