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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/110730

    Title: 美國量化寬鬆政策對股票市場正向回饋行為之探討
    Other Titles: The impact of U.S. quantitative easing policy on positive feedback trading behavior in the stock markets
    Authors: 游碧瑤;Yu, Pi Yao
    Contributors: 淡江大學財務金融學系碩士在職專班
    李命志;李彥賢;Lee, Ming-Chih;Lee, Yen-Hsien
    Keywords: 量化寬鬆;正向回饋;GARCH模型;Quantitative easing policy;Positive feedback;GARCH model
    Date: 2016
    Issue Date: 2017-08-24 23:34:31 (UTC+8)
    Abstract: 美國因次級房貸事件引發全球性金融風暴,造成全球經濟恐慌,故美國在該期間實施一連串的量化寬鬆政策提升經濟。本文研究目的在美國股票市場是否存在正向回饋行為、美國股票的波動性是否具有不對稱效果及量化寬鬆是否會增強正向回饋效果等三個議題。本文利用單根檢定、ARCH效果、波動度不對稱檢定與GARCH模型進行實證分析。
    The subprime mortgage crisis in the United States led to the global financial crisis in 2008. To improve the economy, the U.S. government launched a series of quantitative easing (QE) policies. This thesis investigated three topics: whether the U.S. stock market exhibits positive feedback, whether the volatility of U.S. stocks leads to an asymmetric effect, and whether the QE policies strengthened positive feedback in the stock market. The results are summarized as follows:
    First in the general case, the S&P500 and Philadelphia Semiconductor Index exhibit positive feedback. Second the stock market exhibits volatility clustering; the S&P500 and Philadelphia Semiconductor Index indicate an asymmetric effect on market volatility. Third when the QE policies were implemented, the S&P500 increased by 79% in QE1, 30% in QE2, and 53% in QE3. This indicates that the QE policies stimulated stock prices, thereby increasing stock market investment incentives and leading to stock market gains. Most investors are positive feedback investors who buy when prices are rising and sell when prices are falling. Therefore, the implementation of the QE policies led to an increase in positive feedback in the U.S. stock market.
    Appears in Collections:[財務金融學系暨研究所] 學位論文

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