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  • 學位論文

恐慌指數與投資報酬率之間的關係——考慮牛熊市

Relationship between VIX Index and Stock Return over Bull and Bear Markets

指導教授 : 吳淑貞

摘要


本研究分析恐慌指數與累計期數下的股票報酬率(市場報酬率及十大產業類報酬率)的關係在牛熊市之下的表現。本研究經由實證得到了恐慌指數與S&P500、十大產業類股的報酬率之間在熊市之下無預測報酬率的能力,但在牛市之下則有很強的預測力。 本研究也對恐慌指數與累計期數下的股票報酬率進行子樣本分析,實證的結果為除了公營事業類股外,其餘類股在熊市下仍然沒有預測能力,但在牛市下預測能力相當足夠。同時也發現在熊市下恐慌指數雖無預測股票報酬率的能力,但在長期之下卻發現恐慌指數與股票報酬率間的關係相當顯著,這也說明了恐慌指數漲得越多,同期間買進的股票在長期之下可以獲得較高的報酬率。 本研究也加入其他總體經濟變數,藉此進行強韌性檢測,並探討恐慌指數與累計期數下的股票報酬率是否會因為加入其他變數後預測能力有所改變。經由實證之後,本研究發現高科技、零售及醫療保健類股因為加入其他經濟變數的緣故而變成牛、熊市下的恐慌指數皆有預測能力。其餘類股加入其他總體經濟變數後,恐慌指數與累計期數下的股票報酬率的關係在牛熊市下的表現仍然與加入變數前相同,在熊市下沒有預測能力,在牛市下具有相當強的預測能力。

關鍵字

恐慌指數 股價報酬率 牛市 熊市

並列摘要


This study analyzes the performance of the relationship between the VIX index and the stock returns under the cumulative period (market returns and ten industry returns) in the bull and bear markets. This empirical evidence shows that the VIX index, the return rate of the S&P 500, and the ten industry stocks have no ability to predict the return rate under the bear market, but it has strong predictive power under the bull market. This study also conducted a sub-sample analysis of the VIX index and stock returns. The empirical result is that, except for public utility stocks, the rest of the stocks still have no predictive power in a bear market, but they have sufficient predictive power in a bull market. At the same time, it is also found that the relationship between VIX index and stock return is quite significant in the long-term bear market. This study also adds other macro economic variables, to examine its elasticities, to analyze and explore whether the VIX index and stock return rate will change due to the addition of other variables. After empirical research, this study found that high-tech, retail, and healthcare stocks have the ability to predict VIX indexes in bull and bear markets due to the addition of other economic variables. They all have predictive power. After the other stocks are added to other macro economic variables, the relationship between the VIX index and stock returns in the bull and bear market will still perform the same as before adding the variables; no predictability shown under bear market, yet strong indication under bull market.

並列關鍵字

VIX stock return bull market bear market

參考文獻


1. 張清福 (1985),市場情報效率性的再探討-春節前 後資料之運用,淡江大學管理科學研究所碩士論文。
2. 潘志誠 (1986),台灣股票市場效率性之實證研究- 股價與財務報表公佈之關係,大同工學院事業經營研究所碩士論文。
3. 辜麗娟 (1995),台灣股市技術分析之實證研究,淡江大學財務金融學研究所碩士論文。
4. 陳建全 (1997),台灣股市技術分析之實證研究,國立台灣大學商學研究所碩士論文。
5. 王金鍊 (1997),「技術分析選股策略與市場效率性檢 定-以台灣股市為例」,嶺東學報,8,87-134。

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