Spatial and temporal structures of four financial markets in Greater China

Spatial and temporal structures of four financial markets in Greater China
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大中华区四个金融市场的时空结构

DOI:
10.1016/j.physa.2014.02.006
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发表时间:
2014-02
期刊:
Physica A: Statistical Mechanics and Its Applications
影响因子:
--
通讯作者:
Jiang X. F.
Jiang X. F.
中科院分区:
其他
文献类型:
--
作者:
Ouyang F. Y.;Zheng B.;Jiang X. F.

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我们研究了大中华地区四个金融市场的空间和时间结构。特别是,我们揭示了不同的特点,四个市场通过分析部门和子部门的结构,通过随机矩阵理论检测。与此同时,我们观察到台湾和香港股票市场表现出负的收益率-波动率相关性,即, 所谓的杠杆效应。上海和深圳的股票市场更加复杂。在2000年之前,两个市场表现出很强的正收益率-波动率相关性,即反杠杆效应。但2000年后,逐渐转为杠杆效应。我们还发现,交易量波动率和价格波动率的递归区间分布都遵循幂律行为,但指数在不同的市场之间是不同的。
We investigate the spatial and temporal structures of four financial markets in Greater China. In particular, we uncover different characteristics of the four markets by analyzing the sector and subsector structures which are detected through the random matrix theory. Meanwhile, we observe that the Taiwan and Hong Kong stock markets show a negative return-volatility correlation, i.e., the so-called leverage effect. The Shanghai and Shenzhen stock markets are more complicated. Before the year 2000, the two markets exhibited a strong positive return-volatility correlation, which is called the anti-leverage effect. After 2000, however, it gradually changed to the leverage effect. We also find that the recurrence interval distributions of both the trading volume volatilities and price volatilities follow a power law behavior, while the exponents vary among different markets.
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