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投資者情緒對(duì)中國(guó)股市收益與收益波動(dòng)影響實(shí)證研究

發(fā)布時(shí)間:2018-01-02 08:38

  本文關(guān)鍵詞:投資者情緒對(duì)中國(guó)股市收益與收益波動(dòng)影響實(shí)證研究 出處:《華中科技大學(xué)》2012年碩士論文 論文類型:學(xué)位論文


  更多相關(guān)文章: 投資者情緒 股市收益 收益波動(dòng) 非對(duì)稱效應(yīng)


【摘要】:本文以2005~2012年中國(guó)股市收益率為樣本,采用封閉式基金折價(jià)率、騰落指數(shù)、市盈率、換手率以及新開(kāi)股票賬戶數(shù)五個(gè)周度指標(biāo),通過(guò)主成分分析法構(gòu)建了一個(gè)符合中國(guó)股市的投資者情緒綜合指數(shù),然后利用EGARCH模型對(duì)投資者情緒和我國(guó)股市收益以及收益波動(dòng)的相關(guān)性進(jìn)行實(shí)證研究。 研究結(jié)果表明,投資者情緒變化對(duì)股市收益率呈現(xiàn)正的相關(guān)性,而對(duì)股市收益波動(dòng)率產(chǎn)生負(fù)的相關(guān)性。同時(shí),我國(guó)股市存在明顯的不對(duì)稱效應(yīng),即利好消息對(duì)股市沖擊要明顯大于同等程度的利空消息,這一結(jié)論表明,,投資者情緒是影響我國(guó)股市收益率的一個(gè)系統(tǒng)性因子。另外,本文還對(duì)投資者情緒與特征股票組合收益之間的關(guān)系進(jìn)行了實(shí)證研究。研究發(fā)現(xiàn),當(dāng)投資者情緒高漲的時(shí)候,虧損股、低成長(zhǎng)性股以及小盤股的收益率較高,并且這些股票收益波動(dòng)率也相對(duì)較高;當(dāng)投資者情緒比較低落的時(shí)候,則正好相反。這主要是由于虧損股、低成長(zhǎng)性股以及小盤股的投資者都是個(gè)體投資者,更容易受到投資者情緒的影響。同時(shí),績(jī)優(yōu)股、高成長(zhǎng)股以及大盤股都具有非對(duì)稱效應(yīng),然而虧損股、高成長(zhǎng)股以及小盤股卻不具有非對(duì)稱效應(yīng)。
[Abstract]:In this paper, 2005~2012 annual income Chinese stock index as the sample, the closed-end fund discount rate, ADL, price earnings ratio, turnover rate and the number of new stock accounts for five weeks to build a index, with China investor sentiment index by principal component analysis, and empirical research on the relationship between the investor sentiment and earnings of China's stock market and the volatility by EGARCH model.
The results show that the change rate showed a positive correlation between investor sentiment on stock market returns, and the negative correlation of stock market volatility. At the same time, the existence of asymmetric effect of China's stock market, that is the good news for the stock market to be significantly greater than the impact of bad news of the same degree, the conclusion shows that investor sentiment is the effect of income I China's stock market rate of a systematic factor. In addition, this paper also makes an empirical study on the relationship between investor sentiment and the characteristics of stock portfolio returns. The study found that when investor sentiment, stock losses, low growth stocks and small cap stocks higher yields, and the volatility of stock returns is relatively high; when investors were depressed, is just the opposite. This is mainly due to the loss of stock, low growth stocks and small cap stocks, investors are more individual investors. It is easy to be influenced by investor sentiment. Meanwhile, blue chip stocks, high growth stocks and large cap stocks all have asymmetric effects. However, deficit stocks, high growth stocks and small cap stocks do not have asymmetric effects.

【學(xué)位授予單位】:華中科技大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2012
【分類號(hào)】:F832.51;F224

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