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  • 學位論文

英國,德國,義大利,法國與美國股價間的波動傳遞效果:兼論區域和全球外溢效果及VEC-GJR-DCC-GARCH之應用

Volatility Transmission Effects of Stock Prices among England, Germany, Italy, France and US : The Consideration of the Regional and Global Spillover Effects, and Application of VEC-GJR-DCC-GARCH

指導教授 : 劉祥熹
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摘要


本文以英國、德國、義大利、與法國股價指數為主要研究對象,應用VEC-GJR-DCC-ARCH 模型分析該四國股市間之互動性、波動外溢、共同波動、與不對稱效果,並討論全球重大事件對於該四國共移效果的影響,同時兼論視為全球因素的美國S&P500指數與視為區域因素的道瓊歐洲600指數對樣本國家間資訊遞移效果的影響。樣本期間為1995年1月1日至2010年2月24日。 實證結果證明英國、德國、義大利、法國股價報酬率間具有明顯的共移現象,有相互領先、落後之互動關係,隱含這四國間的股票市場存在整合之現象,且在樣本期間這四國股價報酬率之資訊傳遞機制皆為不對稱型態。此外,由於研究期間適逢一些全球重大事件之發生,因此本文採用ICSS演算法,來檢定樣本期間英國、德國、義大利、法國股價報酬率結構性改變之時點,並與真實經濟事件時點對比,篩選出四個全球重大事件,即俄羅斯金融風暴、網路泡沫、伊拉克戰爭及金融風暴,研究結果顯示,這四個事件皆影響該四個歐洲國家間股價報酬的資訊遞移效果與相關性。在區域效果和全球效果方面,英國和德國的股價報酬率平均皆受到區域因素報酬的負向影響與全球因素報酬的正向影響;然而,義大利和法國的股價報酬率只受到全球因素報酬率的正向影響。德國、義大利、與法國的股價報酬率變異皆受到區域因素波動的負向影響和全球因素波動正向影響;但英國的股價報酬率變異只受到全球因素波動的正向影響。另外,模型納入區域因素和全球因素後,實證結果指出英國、德國、義大利、法國股價報酬率間的互動關係不僅受到國與國之間資訊遞移效果與全球政大事件的影響的影響,也受到區域因素和全球因素的影響。

並列摘要


This study investigates the interactions, common volatility, volatility spillover and asymmetric effects among British, German, French and Italian stock markets by using VEC-GJR-DCC-GARCH model. It also discusses the mediation effect of global events, regional and global effects. The sample period of this study is from January 6, 1995 to February 24, 2010. The empirical results verify that there are interactive relationships among British, German, French and Italian stock price returns. Global events are shown to affect the interactive relationships among these four stock markets. In terms of regional/global mean spillover effects, British and German stock price returns are negatively affected by returns of regional factor, and positively affected by returns of global factor. However, Italian and French stock price returns are only positively affected by returns of global factor. In terms of regional/global volatility spillover effects, volatility of British stock market, which is only positively affected by the volatility spillovers of US stock market while German, Italian and French stock markets are all negatively affected by regional factor and positively affected by global factor.

參考文獻


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