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    題名: 通貨膨脹可預測效果下之跨期投資組合
    Incorporating the Learning Effects in Hedging the Inflation Risks for Long-Term Fund Management
    作者: 游貞怡
    Yu, Chen-Yi
    貢獻者: 張士傑
    游貞怡
    Yu, Chen-Yi
    關鍵詞: 通貨膨脹風險
    貝氏過濾
    平賭過程
    避險組合
    inflation rate risk
    filter process
    martingale method
    hedge portfolio
    日期: 2004
    上傳時間: 2010-12-08 16:43:12 (UTC+8)
    摘要: 本研究探討通貨膨脹風險下長期投資人之最適資產配置。由於長年期通貨膨脹之估計誤差於投資決策上容易產生顯著差異，我們延伸 Brennan and Xia (2002)的模型，嘗試以消費者物價指數預估及修正通貨膨脹率，利用貝氏過濾方法預估未來通貨膨脹率。以平賭過程描述基金的限制條件，最適化投資人之效用值求得加入可預測性效果後之最適多期資產組合模型。研究結果顯示，長期投資人之最適策略可表示為固定比例股票指數基金及不同存續期間固定收益基金之組合。以不同存續期間之固定收益債券可以有效建構規避通貨膨脹風險之避險組合。本研究並提供數值計算與分析。
    This paper examines the optimal portfolio selection for a long-term investor. In order to consider the uncertainty of inflation rate, we extend the work in Brennan and Xia (2002) and use the consumer price index (CPI) to estimate and update the inflation rate through the filtering mechanism. The stochastic real interest rate is assumed to follow the Vasicek-type model. The investor’s optimal portfolio selection is solved through the Martingale method. The result is given in a simple closed form solution. We show that the optimal strategy for the fund manager in hedging the inflation uncertainty is to incorporate a dynamic fixed income portfolio with different durations. Numerical illustration is provided to clarify our findings.
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    描述: 國立政治大學
    風險管理與保險研究所
    92358020
    93
    資料來源: http://thesis.lib.nccu.edu.tw/record/#G0923580201
    資料類型: thesis
    顯示於類別:[風險管理與保險學系] 學位論文

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