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  • 學位論文

不同類型投資人情緒對股價報酬之研究

The Investment Sentiment of Various Investor Types in the Stock Market

指導教授 : 黃志祥
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摘要


隨著歷史事件的發生和許多學者的研究,發現許多的經濟現象並不支持效率市場假說,認為市場中存在許多非理性的投資者,本論文主要目的是探討不同類型投資人情緒與股票報酬之關係。本論文分別建構全體投資人、大型投資人和中小型投資人之情緒指標,另外加上波動率指數(VIX)和消費者信心指數(CCI)來探討是否能更有效的測量投資人情緒,全部共有10個情緒替代變數,使用分量迴歸探討台灣股票市場中,不同類型投資人情緒指標在不同市場報酬下的影響關係;EGARCH模型,則探討不同類型投資人情緒指標與股價報酬的波動性。研究結果,分量迴歸在股價報酬高與股價報酬低時,投資人情緒替代變數皆有不同的反應;在EGARCH模型研究結果顯示,全體投資人情緒與中小型投資人情緒受到衝擊之波動持續性較長;而全體投資人情緒、中小型投資人情緒存在非對稱現象。

並列摘要


Eugene Fama (1970) proposed efficient market hypothesis, but as the study of the occurrence of historical events and many scholars found that many economic phenomena do not support the efficient market hypothesis, that the market there are many various investor types, however, In view of this, the main purpose of this study was to investigate the relationship between different types of investor sentiment and the stock market. In this study, an indirect investor sentiment indicators into all investors, large investors, medium and small investors sentiment and the Volatility Index(VIX) and Taiwan Consumer Confidence Index(CCI). This paper uses EGARCH and Quantile Regression. Quantile regression is used to explore different types of investor sentiment variable relations in different stock returns. EGARCH is used to investigate the different types of investor sentiment indicators and stock return whether volatility and asymmetric effect. The results are as follows: Quantile regression show in the high return sentiment indicators Turnover Rate and Net Buy / Net Sale showing a higher estimation coefficient, in low return sentiment indicators, Put / Call Ratio and Net Buy / Net Sale of TAIEX Index Futures showing a higher estimation coefficient, in another hand, EGARCH model results show all investors sentiment and small investors sentiment the impact of the volatility of a longer duration, all investors sentiment and small investors sentiment have the Asymmetric effect.

參考文獻


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