上证综指日历效应研究

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上证综指的日历效应研究 qwertyuiopasdfghjklzxcvbnmqwertyu iopasdfghjklzxcvbnmqwertyuiopasdfg hjklzxcvbnmqwertyuiopasdfghjklzxcv

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摘要

股市的日历效应证实了市场非有效,在假设市场有效的理论和模型指导下投资必定会产生很大风险,而我国股市发展极为迅速,投资者也日渐益多,因此深入研究日历效应有重要意义。而日历效应的研究仍多是停留在静态的均值收益和波动方差的方面,而本文将从更全面的角度研究日历效应,同时利用日历效应引导投资者进行市场时机抉择,研究方法主要包括描述统计分析和计量分析。描述统计分析包括: 均值、方差、偏度和峰度;计量模型主要利用到序列t分布下的EGARCH-M模型,模型分析主要包括波动非对称性、预期风险影响、滞后期收益影响、滞后期波动和杠杆效应。

关键字：日历效应EGARCH-M 杠杆效应市场时机抉择

Abstact

The Calendar effects in the stock market prove that the market is non-effective, so there will be a great risk by use the theory and model under the assumptions of the efficient market. And with the extremely rapid development of China's stock market, investors are also growing, so it is very significance for depth studying Calendar effects. But the research on calendar effects main emphasis on the mean and variance, this article will study calendar effects from a more comprehensive perspective, while taking advantage of the calendar effect to guide investors for the choice of market timing. Research methods main include descriptive statistics analysis and econometric model analysis. Description statistical analysis includes: mean, variance, skewness, and peak-degree. Econometric model analyses mainly utilize the EGARCH-M model under t distribution; the analysis mainly includes the fluctuations asymmetry, the impact of expected risk, the impact of lag revenue, the impact of lag phase fluctuations and leverage effect.

Keywords: Calendar effect, EGARCH-M model, the leverage effect, market timing choice

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