本研究資料期間自2004年1月2日至2005年12月13日止,擷取政府債券期貨收盤價及10年期最具流動性之政府債券收盤價資料進行整理,2004年1月2日~2005年6月30日為樣本內期間,2005年7月1日~2005年12月13日為樣本外期間。以簡單避險法、最小平方法(價格)模型、最小平方法(報酬)模型及GARCH 模型之避險比率,應用於樣本外期間的避險。實證結果如下:避險績效方面,日資料無論何種模型均未降低其報酬率之波動度,週資料而言各模型均可降低原公債現貨之報酬波動度,其中以OLS(return)較佳,但避險成效不彰。日資料避險比率最小為OLS(報酬)模型,週資料避險比率最小為OLS(價格)模型。就報酬而言,無論日資料及週資料,各種避險模型所作之避險,均降低其報酬率,換言之,未作避險動作之報酬率最佳。 / The main purpose of this paper is to examine the hedging effectiveness of the Taiwan government bond futures under several hedging models. These models are Naive, OLS-reward, OLS-level and GARCH. The daily data is from January 2004 to December 2005. The in-sample data is from January 2, 2004 to June 30,2005. The out-of-sample one is from July 1, 2005 to December 13,2005. The hedging porformance is measured by the decreasing degree of portfolio variance.The empirical results show as follows:1. OLS(return)model has the better hedge performance from weekly data. 2.The smallest hedge ratio is OLS(reward)from daily data, and it’s OLS(level)from weekly data. 3.The reward is highest without hedge
Identifer | oai:union.ndltd.org:CHENGCHI/G0092932202 |
Creators | 謝作治 |
Publisher | 國立政治大學 |
Source Sets | National Chengchi University Libraries |
Language | 中文 |
Detected Language | English |
Type | text |
Rights | Copyright © nccu library on behalf of the copyright holders |
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