采用MF-DCCA方法,对我国金属期货市场量价相关性的多重分形特征和长记忆性特征进行实证检验。结果表明我国金属期货量价关系存在着具有一定时间期限的长记忆性特征。通过分析量价相关性存在多重分形特征的原因,进一步证明我国金属期货市场量价相关性存在长记忆特征。多重分形特征和长记忆性的存在意味着将分形市场理论以及其它的非线性理论和方法引入到对我国金属期货市场行为的分析,具有重要的现实意义。
An empirical test on long memory between price and trading volume of China metals futures market was given with MF-DCCA method. The empirical results show that long memory feature with a certain period exists in price-volume correlation and a fittther proof was given by analyzing the source of multifractal feature. The empirical results suggest that it is of important practical significance to bring the fractal market theory and other nonlinear theory into the analysis and explanation of the behavior in metal futures market.