本文選題：特質(zhì)波動(dòng)率 + 預(yù)期收益�。� 參考：《南京理工大學(xué)》2013年碩士論文

【摘要】：經(jīng)典的資本資產(chǎn)定價(jià)模型假定市場(chǎng)是有效的,公司的特質(zhì)風(fēng)險(xiǎn)可以通過(guò)構(gòu)造投資組合進(jìn)行有效的分解,公司的特質(zhì)風(fēng)險(xiǎn)與預(yù)期收益無(wú)關(guān),不需要得到額外的風(fēng)險(xiǎn)補(bǔ)償。但是近年來(lái)有學(xué)者發(fā)現(xiàn)公司特質(zhì)風(fēng)險(xiǎn)與預(yù)期收益存在著明顯的負(fù)相關(guān)關(guān)系,與傳統(tǒng)的資本資產(chǎn)定價(jià)相悖。目前為止,還沒(méi)有確切的理論可以完全解釋這種負(fù)相關(guān)關(guān)系,成為了學(xué)術(shù)界的一個(gè)謎,稱為“特質(zhì)波動(dòng)率之謎”。本文采用我國(guó)股權(quán)分置改革全面實(shí)施后的樣本數(shù)據(jù),將樣本區(qū)間劃分為融資融券業(yè)務(wù)開(kāi)展前后兩段,分別對(duì)我國(guó)主板市場(chǎng)上兩個(gè)交易所的股票進(jìn)行了實(shí)證研究。主要運(yùn)用FF三因子模型度量公司特質(zhì)風(fēng)險(xiǎn),分別使用投資組合分析法和二維分組分析法定性分析特質(zhì)波動(dòng)率與預(yù)期收益的相關(guān)關(guān)系,發(fā)現(xiàn)特質(zhì)波動(dòng)率與預(yù)期收益存在顯著的負(fù)相關(guān)關(guān)系,并排除了公司規(guī)模、賬面市值比、動(dòng)量和股權(quán)集中度的解釋能力。最后基于異質(zhì)信念對(duì)股票特質(zhì)波動(dòng)率之謎的解釋,運(yùn)用Fama-MacbBeth兩步回歸法定量分析,將換手率引入回歸方程明顯地降低了股票特質(zhì)波動(dòng)率的系數(shù)值與其顯著程度。研究表明,即使不存在賣空限制,我國(guó)依然存在特質(zhì)波動(dòng)率之謎現(xiàn)象,并且該現(xiàn)象可以部分的由異質(zhì)信念來(lái)解釋。
[Abstract]:The classical capital asset pricing model assumes that the market is efficient and the company's idiosyncratic risk can be effectively decomposed by constructing a portfolio. The company's idiosyncratic risk has nothing to do with the expected return and does not require additional risk compensation. However, in recent years, some scholars have found that there is an obvious negative correlation between corporate trait risk and expected return, which is contrary to the traditional capital asset pricing. Up to now, there is no definite theory to explain the negative correlation completely, which has become a mystery in academic circles, which is called "the riddle of trait volatility". In this paper, the sample data after the implementation of the split share structure reform in China are adopted, and the sample interval is divided into two sections before and after the launch of the margin trading business. The empirical study is carried out on the two stock exchanges in the main board market of our country. This paper mainly uses FF three-factor model to measure the company's trait risk, and uses the portfolio analysis method and the two-dimensional grouping analysis method to qualitatively analyze the correlation between the trait volatility and the expected return. It is found that idiosyncratic volatility has a significant negative correlation with expected earnings and excludes the explanatory power of firm size, book market value ratio, momentum and equity concentration. Finally, based on the explanation of heterogeneity belief to the riddle of stock idiosyncratic volatility, using Fama-MacbBeth two-step regression method, the turnover rate is introduced into the regression equation, which obviously reduces the coefficient value of stock trait volatility and its significance. The study shows that even if there is no restriction on short selling, there is still a phenomenon of idiosyncratic volatility mystery in China, which can be partly explained by heterogeneous beliefs.
【學(xué)位授予單位】：南京理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：F224;F832.51

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 陳國(guó)進(jìn);胡超凡;王景;;異質(zhì)信念與股票收益——基于我國(guó)股票市場(chǎng)的實(shí)證研究[J];財(cái)貿(mào)經(jīng)濟(jì);2009年03期

2 張祥建,谷偉,郭嵐;上海股票市場(chǎng)“規(guī)模效應(yīng)”的實(shí)證研究及原因探析[J];大連理工大學(xué)學(xué)報(bào)(社會(huì)科學(xué)版);2003年04期

3 楊華蔚;韓立巖;;特質(zhì)波動(dòng)率、換手率與預(yù)期收益關(guān)系[J];遼寧工程技術(shù)大學(xué)學(xué)報(bào);2007年S2期

4 馬超群,張浩;中國(guó)股市價(jià)格慣性反轉(zhuǎn)與風(fēng)險(xiǎn)補(bǔ)償?shù)膶?shí)證研究[J];管理工程學(xué)報(bào);2005年02期

5 陳健;曾世強(qiáng);李湛;;基于非系統(tǒng)風(fēng)險(xiǎn)被定價(jià)的資本資產(chǎn)定價(jià)模型[J];管理工程學(xué)報(bào);2009年03期

6 黃波;李湛;顧孟迪;;基于風(fēng)險(xiǎn)偏好資產(chǎn)定價(jià)模型的公司特質(zhì)風(fēng)險(xiǎn)研究[J];管理世界;2006年11期

7 王鳳榮;趙建;;基于投資者異質(zhì)性信念的證券定價(jià)模型——對(duì)我國(guó)股票市場(chǎng)價(jià)格的實(shí)證檢驗(yàn)[J];經(jīng)濟(jì)管理;2006年18期

8 吳世農(nóng),吳超鵬;我國(guó)股票市場(chǎng)“價(jià)格慣性策略”和“盈余慣性策略”的實(shí)證研究[J];經(jīng)濟(jì)科學(xué);2003年04期

9 蘇武康;中國(guó)上市公司股權(quán)集中度與公司績(jī)效實(shí)證研究[J];經(jīng)濟(jì)體制改革;2003年03期

10 蘇冬蔚,麥元?jiǎng)?流動(dòng)性與資產(chǎn)定價(jià):基于我國(guó)股市資產(chǎn)換手率與預(yù)期收益的實(shí)證研究[J];經(jīng)濟(jì)研究;2004年02期

相關(guān)博士學(xué)位論文 前1條

1 陳建;證券利益關(guān)系研究[D];復(fù)旦大學(xué);2010年

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