融資融券對(duì)A股波動(dòng)性的影響研究
本文關(guān)鍵詞: 融資融券 A股市場(chǎng) 波動(dòng)性 GARCH模型 出處:《山西財(cái)經(jīng)大學(xué)》2013年碩士論文 論文類型:學(xué)位論文
【摘要】:融資融券是股票市場(chǎng)重要的多空交易機(jī)制,具有套期保值、穩(wěn)定市場(chǎng)、增加流動(dòng)性以及價(jià)格發(fā)現(xiàn)等功能,對(duì)于股票市場(chǎng)功能發(fā)揮具有不可替代的作用。2010年3月31日,我國(guó)推出了融資融券交易機(jī)制,隨著融資融券的正式啟動(dòng),A股市場(chǎng)告別了多年的單邊做多機(jī)制,成為我國(guó)證券市場(chǎng)發(fā)展的里程碑。但是,在現(xiàn)實(shí)中,我國(guó)的融資融券交易能否起到熨平市場(chǎng)波動(dòng)的效果?如果可以平抑市場(chǎng)波動(dòng),那么這個(gè)影響的程度又如何 論文首先對(duì)融資融券及股市波動(dòng)性的概念進(jìn)行界定,梳理了融資融券影響股市波動(dòng)性的作用機(jī)制,分析了融資融券影響股市波動(dòng)的制約因素,在此基礎(chǔ)上,以我國(guó)A股市場(chǎng)融資融券交易及滬深300指數(shù)運(yùn)行的數(shù)據(jù)為樣本,運(yùn)用OLS回歸、格蘭杰因果檢驗(yàn)、描述性統(tǒng)計(jì)分析、GARCH模型等方法進(jìn)行實(shí)證分析,并對(duì)實(shí)證結(jié)果進(jìn)行解釋。 研究結(jié)果表明:從短期來(lái)講,融資交易的發(fā)生使股價(jià)指數(shù)上漲,但是融券交易對(duì)股市波動(dòng)性的影響不具有顯著性,另外,融資、融券與波動(dòng)性之間分別存在單向的因果關(guān)系,即融資交易是股市波動(dòng)的格蘭杰原因,股市波動(dòng)是融券交易的格蘭杰原因,這一結(jié)果與我國(guó)股票市場(chǎng)的特殊情況有關(guān)。就長(zhǎng)期而言,通過(guò)前后的比較可以發(fā)現(xiàn),融資融券推出后A股市場(chǎng)的波動(dòng)減小了,但是從實(shí)證數(shù)據(jù)來(lái)看,,市場(chǎng)波動(dòng)減小的幅度不大,說(shuō)明融資融券還未充分發(fā)揮其平抑市場(chǎng)波動(dòng)的作用。
[Abstract]:Margin financing is an important short-trading mechanism in the stock market. It has the functions of hedging, stabilizing the market, increasing liquidity and finding the price. It plays an irreplaceable role in the function of the stock market. China has introduced the mechanism of margin trading. With the formal launch of margin trading, the A-share market has bid farewell to the long unilateral mechanism for many years, which has become a milestone in the development of China's securities market. However, in reality, the A-share market has become a milestone in the development of the securities market. Can the margin trading in our country have the effect of ironing the fluctuation of the market? If market volatility can be calmed, what is the extent of the impact. Firstly, the paper defines the concepts of margin margin and stock market volatility, combs the mechanism of margin margin affecting stock market volatility, and analyzes the restrictive factors of margin margin affecting stock market volatility. Based on the data of margin trading and CSI 300 index operation in China's A-share market, the empirical analysis is carried out by means of OLS regression, Granger causality test, descriptive statistical analysis and GARCH model, and the empirical results are explained. The results show that: in the short term, the occurrence of financing transactions makes the stock index rise, but the impact of margin trading on the volatility of the stock market is not significant. In addition, there is a one-way causal relationship between financing, margin trading and volatility. That is, financing trading is the Granger cause of stock market fluctuation, and stock market fluctuation is Granger reason of margin trading. This result is related to the special situation of stock market in China. The volatility of A-share market has decreased after the introduction of margin financing, but from the empirical data, the range of market volatility is small, indicating that margin margin has not fully played its role of stabilizing market volatility.
【學(xué)位授予單位】:山西財(cái)經(jīng)大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2013
【分類號(hào)】:F832.51;F224
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