【作者】 魏宝靖；

【导师】 马薇；

【作者基本信息】 天津财经大学 ， 统计学， 2011， 硕士

【摘要】 一个运转正常的股票市场的表现在一定程度上反映了宏观经济的状况,国民经济发展态势往往可以在股市中得以体现。股票市场中最基本的关系是量价关系。传统的理论认为,量价配合的市场是相对稳定的,而若二者发生背驰,则蕴含着一定的风险,并且在一般情况下,量在价先。近几年中国资本市场已经发生了重大改变,特别是在全球经济危机冲击过后,经典结论是否适合中国的情况,有必要结合中国证券市场运行的实践进行检验。因此,论文的研究有一定的理论价值和现实意义。论文以2005年下半年以来上证指数和成交量数据为基础,采用中国资本市场这段特殊时期的最新数据,借助于向量误差修正模型、脉冲响应分析、非参数GARCH模型过滤方法、线性与非线性因果检验等现代计量分析技术,从线性与非线性两个角度检验了中国证券市场的牛市和熊市两种不同市场情况下的量价特征：沪市量价之间的基本关系、量价之间的因果性检验、相互间的影响力度、投资者使用量价分析进行投资决策是否可行等。实证对比研究,发现“量价关系”已与以往研究结果有很大差异。不同市场行情下,量价关系具有不对称性。具体表现为,牛市中,股票价格与成交量之间存在着很强的正相关关系,在线性意义下股票价格对股票成交量有着很强的单向拉动作用,而成交量却对股票价格没有解释力；而非线性因果检验发现成交量却对股票价格有一定的解释力,这证实了非线性方法相对于线性方法能够捕捉到更多的信息。熊市中,股票价格和成交量之间不存在明显相关性,也不具有因果关系。传统的“量在价先”投资理念不适合近期的中国证券市场,中国股市“羊群行为”在逐渐消失,日前的中国证券市场是部分有效的。论文研究创新有：(1)充分考虑中国证券市场股价和成交量剧烈的周期性波动特征,从股价周期波动的不同阶段检验证券市场的运行特征,对不同运行趋势下的股票市场量价关系进行研究；(2)考虑到金融时间序列常表现出明显的非线性特性,从线性与非线性两个角度检验中国证券市场的牛市和熊市两种市场情况下的量价特征。采用非参数GARCH模型过滤方法,并首次引入国外最新非线性因果关系检验方法Diks and Panchenko (2006),对中国股市量价关系进行检验。更多还原

【Abstract】 The performance of a normal functioning stock market can reflect the situation of macroeconomics to some extent. The developmental trend of national economy often can be reflected in the stock market. The most basic relationship in the stock market is volume price relationship. According to the traditional theories, the markets in which price coordinates with volume are relatively stable, and if the divergence between volume and price occurs, the market contains a certain amount of risks. Under the normal circumstances, and normally, quantity appears before the price. In recent years, China’s capital markets have significant changes, especially after the impact of global economic crisis. Therefore, it is necessary for us to check out that classic conclusions whether are still suitable to the current conditions of China in considerations with the practices of securities market in China. Therefore, the thesis has a theoretical value and practical significance.This thesis is base on the dates of the Shanghai index and turnover since the second half of 2005 and updated data of China’s capital market in this special stage, applying the modern econometric analysis technologies, such as VECM model, impulse response analysis and non-parameter GARCH model filtering method, the linear and nonlinear causality test and so on to testify the features of quantity and price in bull and bear markets of China’s securities markets from two perspectives of linear and non-linear, which includes the basic relationship between quantity and price in Shanghai stock exchange, causality test on relationship between volume and price, mutual influence strength, feasibility of investors using volume and price analysis to conduct investment decisions. At last, we can find ihat "volume-price relationship" has big differences with the previous research results. Under different market conditions, relationship between price and volume features with asymmetry. It specifically embodies in following aspects:in the bull market, stock prices and trading volume exists the strong positive correlation, and stock price has a strong one-way stimulating effect on the stock trading volume under the sense of linear, while the volume of the stock price has not explanatory power toward stock price; but nonlinear causality test showed that volume of turnover has explanatory power toward stock price which testify the method of non-linear can capture more information than linear method. In the Bear market, there is no significant correlation between stock prices and trading volume and nor the causality. Finally, the extended conclusion can be drawn:the traditional investment philosophy of "quantity before price" is not suitable for the Chinese stock market recently, the Chinese stock market "herd behavior" is gradually disappearing, and current securities market is partially efficient in China.The innovations of this thesis mainly lie in two points:(1)conducting the research on relationship between volume and price under the different running trend of stock market, especially taking the features of dramatically periodic fluctuation of China’s securities market into consideration to testify the running features of from different stages of stock periodic fluctuation;(2) taking the fact into account that the financial time series often show obvious nonlinear characteristics and testifying the characteristics of volume-price relationship under different market circumstances of bull and bear market of China’s securities market from linear and non-linear perspectives. Through the comparative analysis on the causality test methods, the thesis introduces foreign latest analysis of nonlinear causality test method for the first time. Diks Panchenko (2006), and applies GARCH model by using nonparametric filtering methods to conduct research on the Chinese stock market price volume relationship.更多还原