期刊
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
卷 392, 期 5, 页码 1172-1179出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physa.2012.11.031
关键词
Econophysics; CSI300 index futures; Cross-correlation; Scaling analysis; Multifractal analysis
资金
- National Science Foundation of China [71171083]
- Humanities and Social Sciences Fund
- Ministry of Education of the People's Republic of China [09YJC630075]
We investigate the cross-correlation between price returns and trading volumes for the China Securities Index 300 (CSI300) index futures, which are the only stock index futures traded on the China Financial Futures Exchange (CFFEX). The basic statistics suggest that distributions of these two time series are not normal but exhibit fat tails. Based on the detrended cross-correlation analysis (DCCA), we obtain that returns and trading volumes are long-range cross-correlated. The existence of multifractality in the cross-correlation between returns and trading volumes has been proven with the multifractal detrended cross-correlation analysis (MFDCCA) algorithm. The multifractal analysis also confirms that returns and trading volumes have different degrees of multifractality. We further perform a cross-correlation statistic to verify whether the cross-correlation significantly exists between returns and trading volumes for CSI300 index futures. In addition, results of the test for lead-lag effect demonstrate that contemporaneous cross-correlation of return and trading volume series is stronger than cross-correlations of leaded or lagged series. (C) 2012 Elsevier B.V. All rights reserved.
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