2015年股災(zāi)后A股市場(chǎng)的波動(dòng)研究
[Abstract]:In 2015, the domestic stock market experienced roller coaster-style changes. After seven full years of silence, the stock market opened a frenzied bull market with the strong support of the state for the capital market and the introduction of 5 trillion funds into the market. However, with the national control of the market and the clean-up of leveraged funds, the market has turned from prosperity to decline, forming a three-round sharp decline. This paper first introduces the background of the problem, and leads to the focus of research, namely, market volatility. The history of the domestic stock market is summarized from two aspects. According to Eliot's wave theory, we can see that from the beginning of the stock market, we mainly experienced two complete wave cycles. That is, the big bull market around 2008 and the big bull market around 2015. In the second chapter, the two phases are explained in detail, followed by the introduction of several important fluctuation nodes and important impact events of the stock market. This paper mainly studies the volatility of stock market from two aspects: the research of stock volatility type based on cluster analysis in multivariate statistical theory and the analysis of volatility trend based on ARMA model in time series theory. In the empirical research, this paper mainly introduces the relevant theory of cluster analysis, and selects the Shanghai Stock Exchange 50 stock to carry on the data analysis, obtains the conclusion that the market environment effect and the plate effect are obvious, which are consistent with the domestic market practice. That is to say, in the stage of violent fluctuation, the quality of stock itself does not play a decisive role in its motion, but the real decisive effect is the environment in which the stock is located. Aiming at the trend of stock volatility, this paper forecasts the price based on the ARMA model in time series analysis. In the data analysis phase, we mainly selected the fluctuation data of the Shanghai stock index in 2016 and the fluctuation data of the new stock since January 2017 to fit the parameters, and finally got a better result. Through verification, it is found that the predicted data fluctuation trend is basically consistent with the real market fluctuation trend, indicating that the reliability and validity of the model are relatively high. In the last chapter of this paper, the main work of this paper and the influencing factors and measures of the stock market disaster in 2015 are analyzed, and some problems existing in the current rapid development of the domestic stock market are pointed out. That is, the leverage ratio of market funds is higher, and gambling psychology is obvious; The state policy has a great impression on the trend of the market, and the effect of the policy market is obvious; the investors are irrational and blindly follow the trend; the overall confidence is insufficient, and the development is hindered. After pointing out a series of problems, this paper puts forward a series of countermeasures, that is, to reduce the leverage ratio and capital risk, to perfect the supervision system, to establish and perfect the system and mechanism of the market, and to strengthen the rational education of investors to boost the confidence of the whole market. After completing the whole analysis, the author looks forward to the development of China's market, that is to say, the whole market will develop steadily and well, and there will be twists and turns in the process of progress, but we believe that the tomorrow of the capital market is a beautiful one.
【學(xué)位授予單位】:山東大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:F832.51
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