Does investor sentiment affect ETF information efficiency? Is improving or impairing?

淡江大學機構典藏 > 商管學院 > 財務金融學系暨研究所 > 學位論文 > Item 987654321/110704

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题名:	Does investor sentiment affect ETF information efficiency? Is improving or impairing?
其它题名:	投資人情緒會影響ETF資訊效率嗎？是改善還是削弱？
作者:	曾永慶;Tseng, Yung-Ching
贡献者:	淡江大學財務金融學系博士班李沃牆;Lee, Wo-Chiang
关键词:	恐慌指數;亞洲市場 ETF;波動叢聚效應;厚尾;金融環境條件;volatility index;Asian ETF market;Volatility-clustering effect;Heavy Tail;Monetary environmental conditions
日期:	2016
上传时间:	2017-08-24 23:33:57 (UTC+8)
摘要:	本研究主要是分析投資人情緒對於指數股票型基金（ETFs）流動性的影響，並捕捉投資人情緒的改變對於ETF流動性影響的效果，本研究使用美國恐慌指數（VIX）作為投資人情緒的代理變數。我們的樣本數據主要集中在亞洲市場的ETF，實證結果顯示，投資人情緒對於這些亞洲國家ETF的流動性有顯著的影響。為了準確地捕捉到流動性的特點，本研究採用GARCH模型來檢測ETF的流動性是否具有波動叢聚效應的現象，並且採用Polite(2008) 之GARCH厚尾修正模型，它是修正GARCH模型在資料分配型態補捉的缺失，厚尾係數表示厚尾承受風險承度，此部份亦為本論文創新之處。實證結果顯示亞洲市場ETF具有流動性波動叢聚的效應。此外，我們的研究還發現投資人情緒和不同國家的ETF流動性會有顯著不同程度的影響關係。從風險管理和證券投資的觀點，本文建議考慮採用投資人情緒這個因子來納入其投資的決策。 This study aims to analyze the effect of investor’s sentiment on the Exchange Traded Funds (ETFs) liquidity to capture the various investment sentiment for the ETFs liquidity changes, using the Volatility Index (VIX) as a proxy variable to observe the market characteristics. Our sample data mainly focus on the Asia ETF market, and the empirical results show that the degree of market investor sentiment plays an important role in the ETF liquidity within these Asia countries. In order to accurately capture the liquidity characteristics, this study adopt the GARCH model to check whether ETF liquidity has a volatility-clustering effect or not, by adding Polite (2008) financial data with heavy tail characteristic, to correct the distribution pattern of missing data on GARCH model, which is an new idea in this paper. The empirical result shows that ETF has liquidity and volatility-clustering effect, which means there is a better or poor liquidity phenomenon in a specific period, which depends on monetary environment conditions and market investors’ expectation. In addition, our research also found that VIX and ETF liquidity would have a significantly different relationship with the development of different countries. From the viewpoints of hedging market risk and portfolio investment, this paper suggests investor to take consideration of the sentiment factors into their investment decision, and timely readjust the investment weight of ETF product.
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