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    Please use this identifier to cite or link to this item: https://nccur.lib.nccu.edu.tw/handle/140.119/69766


    Title: 投資組合保險策略之實證研究-台灣股市
    Other Titles: An Empirical Study of Portfolio Insurance Strategy---The Case of Taiwan.
    Authors: 徐燕山
    Contributors: 財務管理學系
    Keywords: 複製性賣權;投資組合保險;GARCH模型
    Option-replication;Portfolio insurance;GARCH
    Date: 1994
    Issue Date: 2014-09-10 17:47:35 (UTC+8)
    Abstract: 本研究探討台灣股市執行複製性賣權投資組合保險策略的績效。研究方法使用重抽樣技術,從台灣股市報酬率歷史資料模擬出所需報酬率序列。複製性賣權保險策略的股價變動性預測,分別利用一般化自我迴歸條件化異質變異數法(GARCH)及移動平均法(Moving Average)來估計。模擬研究結果顯示,以GARCH方法預測股價變動性的複製性賣權投資組合保險策略績效,較以MA方法的績效佳。換言之,GARCH投資組保險策略所保有上方獲利較MA投資組合保險策略高,而GARCH投資組合保險策略鎖定下方風險的能力也較MA投資組合保險策略佳。敏感度分析顯示,當無風險利率低,交易成本微少,要保額度高,或市場波動性大時,精確的股價波動性預測益形重要。
    This paper evaluates the performance of synthetic-put portfolio insurance strategy on Taiwan Stock Market, in which volatility are forecasted with alternative models. The bootstrap technique is employed to simulate the return series from empirical return distributions. The results show that the synthetic put strategies with GARCH specifications (volatility forecasted with generalized autoregressive conditional heteroscedasticity models, GARCH) have better ability to reduce the downside risk and retain upward gains than MA specifications (volatility forecasted with moving average models) in most cases. The difference of upward gains retained between GARCH specifications and MA specifications becomes more pronounced when the risk-free rate is relatively low, the floor value insured is relatively high, and the transaction cost is relatively low. Results based on the actual return data on Taiwan Stock Market from 1981 to 1993 show that GARCH specifications overwhelm MA specifications in reducing downside risks and retaining upward gains in most cases.
    Relation: 行政院國家科學委員會
    計畫編號NSC83-0301-H004-020
    Data Type: report
    Appears in Collections:[財務管理學系] 國科會研究計畫

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