文本描述
上海师范大学硕士学位论文
摘要
论文题目:交易时间错位和长短期视角下中美股市联动性研究
学科专业:金融学
学位申请人:李艾洛
指导教师:姚亚伟
摘要
随着全球各个国家经贸交流的稳步推进,国际金融市场之间的联系也日益
加深,全球金融市场出现了协同变化的新趋势,2015年股灾、2018年中美贸易
战、2020年初席卷全球的疫情,每一件都对中美股票市场产生了巨大影响,本
文就这三个重大事件通过交易时间错位和长短期视角分析中美股市联动情况。
本文首先按照一定的脉络对国内和国外有关金融市场联动的成果进行整合,
从经济基础、市场传染、市场预期效应以及交易途径信息化角度对中美股市联
动做了理论分析,为接下来的实证研究奠定理论基础;其次,研究的对象为中
美股票市场按照指数编制原理划分的三个层次,沪深 300-标普 500股票指数、
上证 50-道琼斯工业指数以及创业板-纳斯达克综合指数,分别代表中美股票
市场、中美大型企业和中美科技创新企业;再次,根据中美股票市场交易时间
的错位,将中美股票市场收益率划分为日间收益率和夜间收益率,运用 VAR和
SVAR模型从同期和非同期联动视角对中美股票市场的情况进行研究,除此之
外,为了判断上述结论在不同市态下是否依然成立,运用了分位数模型对三个
层次下中美股票市场极端收益情况下的联动性进行分析;最后,除了考虑中美
股市由于交易时间不同导致的同期和非同期联动性外,本文基于中美股市长期
和短期联动视角,通过 MODWT方法将中美股市收益率按照时域和频域进行划
分,考虑不同时域和频域划分下中美股市联动性的大小,最后根据实证结果给
出了相应的政策建议。
研究发现中美股票市场存在显著双向的同期联动性,大小和方向以美国市
场对中国市场为主,并且这一联动性在 2015年股灾、2018年贸易战和 2020年
疫情期间显著增大,与同期联动性相比,中美股票市场之间的非同期联动性在
大多情况下都不显著,不过无论同期联动性还是非同期联动性,都存在“ V”
型结构,也即是中美股票市场在极端收益处联动敏感。除此之外,在对中美股
市进行长期和短期联动性分析时发现,三个层次下短期(2-4天左右)都不存在
明显的相关性,说明三者都受股票市场短期噪音的影响,无法看出两者之间的
真实波动性如何,但是在中长期,三个层次的股票市场都展现出了显著的相关
性,其中沪深 300-标普 500指数在 1个月左右联动性达到最大,相关系数为
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摘要
上海师范大学硕士学位论文
0.2718;上证 50-道琼斯工业指数在 1-2周时间期间联动性达到最大,相关系
数为 0.2917;创业板-纳斯达克综合指数在 1-2个月时间区间联动性达到最大,
相关系数为 0.2253,可以看出大型公司受外界影响的恢复速度最快,相关性最
大。最后通过 Granger因果检验发现在长短期联动视角下中美双方存在双向联
动效应。
关键词:股市联动性;SVAR模型;VAR模型;分位数模型;MODWT模型
论文类型:应用研究
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上海师范大学硕士学位论文
Abstract
Abstract
With the development of economic globalization and trade liberalization, the
international financial market is increasingly connected with each other, and a new
trend of coordinated changes has emerged in the global financial market. Stock
Market Crash in 2015, Trade disputes between China and the United States in 2018,
COVID-19 epidemic in 2020, influence on the U.S and China’s stock market. Here,
we explore the two linkage through the three major events by trading time
dislocation and short - and long-term.
First of all, this article sorts out the theoretical foundation. Such as economic
base theory, market contagion theory, market expectation theory and trading channel
informatization theory. Secondly, the research objects are three levels of Chinese and
American stock markets divided by the principle of index preparation, namely, CSI
300-S&P 500 Stock Index, SSE 50-Dow Jones Industrial Index and GEM-Nasdaq
Composite Index. This paper use them on behalf of China and the U.S’s stock
markets, Chinese and American large enterprises, Chinese and American scientific
and technological innovation enterprises. Again, according to the dislocation of time
of China and the United States’ stock markets, we divided the rate of return of the
two countries into day and night yield, using VAR and SVAR model from the
perspective of the same period and not to study the linkage of the two countries’
stock markets. Besides, in order to determine whether the above conclusion under
different city state still was established, using the Quantile Model of three levels
under the extreme condition analyzes the two countries; Finally, in addition to
consider the two countries over the same period and not in the same period due to
time different correlation, this article is based on long-term and short-term
perspective. The linkage by MODWT approach will return on the stock market of
China and the United States, in accordance with the time domain and frequency
domain division, under different time domain and frequency domain division,
considering the size of the stock market linkages of China and the United States.
According to the above conclusions in this paper, we give the corresponding policy
recommendations.
In this paper, we found that the two countries have two-way correlation in same
period, the size and the direction is given priority to the American market for
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