中国股票数据的GARCH模型建模+matlab代码
时间:2020-05-17 19:46 来源:毕业论文 作者:毕业论文 点击:次
摘要股票市场自其产生以来就以其价格的波动性为显著特征,如何准确描述股市价格行为以确定未来股市收益率情况是所有投资者及股市个利益相关个体所关心的问题,同时这也是学术界所关心的问题。本文介绍了收益率的波动性及其特征,并给出了 ARCH模型和 GARCH相关理论知识,选取中国最近六年的上证指数收盘价作为数据样本进行 ARMA和GARCH 模型建模,并分别对ARMA 模型和GARCH 模型的残差平方进行 LM检验,确认充分提取数据序列中的相关信息。本文验证了在金融时间序列方面,GARCH 模型相比于ARMA 模型能够更好地刻画描述数据的波动性。49143 毕业论文关键词:上证指数 波动率 GARCH 模型 itle GARCH Model of Chinese Stock Data AbstractThe stock market has the characteristic for its price fluctuate, and how to describethe price behavior of the stock market exactly in order to forecast the stock marketyield is a very important question. This paper introduces the volatility of yieldand its characteristics, and gives the ARCH model and GARCH related theoreticalknowledge. We not only modeled the latest-six-year Shanghai Composite Indexclosing price by ARMA and GARCH, but also made LM Test of ARNA model’s and GARCHmodel’s squared residual to make sure of confirming the full extraction of relevantinformation from the data sequence. In this paper, it is proved that the GARCHmodel can describe the volatility of the data better than the ARMA model in termsof financial time series. Keywords:Shanghai Index; Volatility; GARCH model 目录 1绪论1 1.1选题背景1 1.2理论意义1 1.4本文结构2 2相关理论基础介绍...3 2.1股票波动率及其特征...3 2.2ARCH模型...4 2.3GARCH模型.4 2.4指标的选取5 3实证分析...6 3.1数据及其基本统计特征...6 3.1.1数据来源及处理..6 3.1.2数据检验..6 3.2ARMA模型拟合..8 3.2.1收益率序列平稳性及纯随机性检验8 3.2.2ARMA(r,m)模型建模.9 3.3GARCH(1,1)模型拟合13 4结论与建议.16 4.1结论16 4.2政策和建议16 致谢18 参考文献.19 附录AMATLAB代码附录1
附录B2010年1月4日到2015年12月31日上证指数日收盘价数据..1 |