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本文论述了证券市场周期性的存在,并分析影响证券市场周期性的因素;利用频谱分析方法可以找到整个市场的各种周期,我们利用DFT方法对上海A股指数进行分析并证实了周期性的存在.
This paper discusses the cyclical existence of the stock market, and analyzes the factors that affect the cyclicality of the securities market. Using spectrum analysis, we can find various cycles of the whole market. We use the DFT method to analyze the Shanghai A-share index and confirm the cyclical exist.