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論文名稱 Title |
檢定無限期次共整合VAR模型之共整合向量的統計式 Nil |
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系所名稱 Department |
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畢業學年期 Year, semester |
語文別 Language |
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學位類別 Degree |
頁數 Number of pages |
46 |
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研究生 Author |
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指導教授 Advisor |
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召集委員 Convenor |
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口試委員 Advisory Committee |
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口試日期 Date of Exam |
2000-06-23 |
繳交日期 Date of Submission |
2000-07-27 |
關鍵字 Keywords |
共整合、無限期次非常態的向量自我迴歸模型 Infinite Order Non-Gaussian Vector Autoregressive, Cointegration |
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統計 Statistics |
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中文摘要 |
摘要 由於Johansen的Gaussian VAR model的大部分實證研究結果都無法同時通過常態性與獨立性檢定,因此我們在應用共整合模型時,似乎有放寬 Gaussian VAR 之假設的必要。Saikkonen (1992), Saikkonen and Luukkonen (1997) 的共整合方法將有限期次向量自我迴歸模型 (Finite-Order VAR) 延伸為無限期次,並將殘差項為常態的假設摒除,除了更一般化外,也消除了 Johansen and Juselius (1990) 方法中殘差項經常不能通過常態性檢定的困擾。Saikkonen (1992), Saikkonen and Luukkonen ( 1997 ) 稱此為無限期次非常態的向量自我迴歸模型(Infinite Order Non-Gaussian Vector Autoregressive Process )。 本研究所採用的模型以Saikkonen (1992)、Saikkonen and Luukkonen (1997) 的無限期次非常態的向量自我迴歸模型為主,對於應用廣泛的 Johansen 之最大概似估計法和其他相關知識,則在文獻回顧中加以說明。此模式的估計,依順序會有5個步驟,其分別為: (1)單根檢定。 (2) 決定落後期數k,以VAR(k) model 來漸近無限期次 VAR model。 (3) 檢定共整合數目。 (4) 估計共整合向量的係數,常數矩陣。 (5) 對步驟(4)的估計式做假設檢定。 本研究最主要的目的是:導出檢定共整合向量的統計式,並對共整合向量估計式做假設檢定,其結論是所推導的共整合向量的Wald Test形態的檢定,其分配將會是Chi-Square分配。 |
Abstract |
Nil |
目次 Table of Contents |
目次 第一章 緒論 1 第一節 動機與目的 1 第二節 方法及架構 3 第二章 文獻回顧與理論模型 4 第一節 相關文獻回顧 4 第二節 理論模型 17 第三章 估計步驟介紹 21 第一節 單根檢定 21 第二節 決定落後期數k 25 第三節 檢定共整合數目 26 第四節 估計共整合向量的係數及常數矩陣 30 第五節 對 和 做假設檢定 30 第四章 推導過程與分析 32 第五章 結論與建議 38 第一節 結論 38 第二節 建議 39 參考文獻 40 |
參考文獻 References |
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