研究生: |
鄭秉穆 TEY PENG MOK |
---|---|
論文名稱: |
股價指數期貨市場上的動態避險策略研究 COMPARISON OF DIFFERENT DYNAMICAL HEDGING STRATEGIES IN STOCK INDEX FUTURES MARKET |
指導教授: |
周若珍
Rouh-Jane Chou |
口試委員: | |
學位類別: |
碩士 Master |
系所名稱: |
理學院 - 統計學研究所 Institute of Statistics |
畢業學年度: | 87 |
語文別: | 中文 |
論文頁數: | 43 |
中文關鍵詞: | 動態避險 、廣義異質條件變異模型 、不對稱式廣義異質條件變異模型 、最佳避險比率 、共整合 、誤差修正表示式 |
外文關鍵詞: | DYNAMICAL HEDGING, GARCH, ASYMMETRIC GARCH, OPTIMAL HEDGE RATIO, COINTEGRATION, ERROR CORRECTION REPRESENTATION |
相關次數: | 點閱:83 下載:0 |
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為了有效的轉移風險,評估最適避險比率的問題一直是期貨市場上主要的議題之一。Kroner(1993)把GARCH模型應用在外匯市場求最適避險比率的問題上,發現該動態避險策略有較其他模型更佳的效果,Park(1995)後來把同樣的方法用在S&P500和多倫多指數期貨上亦得到類似的結論。近年ARCH模型已有不少人給于修正,其中一個主要的改變就是使其條件變異數對好消息(positive innovation)與壞消息(negative innovaton)有不對稱的影晌,發現如此可更好的解釋市場上的現象。本文結合不對稱型的GARCH及Kroner的方法,看看在台灣及附近國家的指數期貨市場上能否達到更佳的避險效果。結果發現在S&P500、恆生、Nikkei225、吉隆坡指數和摩根台指這五個期貨市場上,不對稱型的GARCH均較能減少避險組合在樣本內的變異。做樣本外的預測時,不對稱型的GARCH能在摩根台指期貨市場上較其他模型減少百份之十六以上的風險。但在其他四個市場中,異質變異模型則沒有較佳的預測能力。
參考文獻
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