| 研究生: |
陳柏任 Po-Jen Chen |
|---|---|
| 論文名稱: |
隨機利率下之投資組合最佳化 |
| 指導教授: |
繆維正
Wei-Cheng Miao |
| 口試委員: | |
| 學位類別: |
碩士 Master |
| 系所名稱: |
理學院 - 統計研究所 Graduate Institute of Statistics |
| 畢業學年度: | 94 |
| 語文別: | 中文 |
| 論文頁數: | 33 |
| 中文關鍵詞: | 投資組合最佳化 |
| 外文關鍵詞: | optimal portfolio |
| 相關次數: | 點閱:21 下載:0 |
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在財務最佳化投資的應用上,常被應用找出標第物的最佳化投資權重方法為Mean-Variance 方法,此方法在無風險利率上的假設為常數,本篇要介紹的方法由HJB PDE 導出最佳化投資權重,在W. H. Fleming 及S. J.
Sheu(2000)提出的方法也得到相同的結果。假設無風險利率為隨機情況下,所求的最佳化投資權重。在對數型效用函數且在允許買空賣空(投資權重允許為負值)的情況下,比較兩個方法所得期末報酬表現。在推導中,
將介紹利用HJB PDE 推導隨機利率的最佳化投資權重結果。評判兩個方法的標準為夏普比率之高低,實證分析中將採用美國金融市場歷史資料。
Mean-Variance portfolio optimization is the most commonly applied method to find the portfolio weight for risky assets. The interest rate is assumed to be a constant in the framework. We derive the optimal portfolio weight by Hamilton-Jacobi-Bellman (HJB) equation under log utility when the interest rate is stochastic. We compare the Sharpe ratio as a measure of performance of the two methods, allowing short sales. The empirical analysis on US historical data is conducted.
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