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研究生: 欉清全
Genius Tung
論文名稱: 多元自迴歸條件異質變異數之模型設定研究
指導教授: 汪義育
學位類別: 碩士
Master
系所名稱: 商學院 - 國際經營與貿易學系
Department of International Business
論文出版年: 1993
畢業學年度: 81
語文別: 中文
論文頁數: 86
中文關鍵詞: 穩健統計量非恆定共積準最大概似估計式因素分析
外文關鍵詞: robust statistics, Multivariate ARCH
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  • 經濟理論明白揭示,在不確定下,金融性資產的選擇不僅要考慮其未來報

    酬率的平均值,更需將風險程度納入決策過程中。而最佳風險測度為預測

    誤差的變異數(Variance of Forec ast Error)。傳統實証方法均視變異

    數為固定常數,實無法掌握變異數具有條件異質性的特點。為了到達此目

    的,Engle(1982) 提出向量自迴歸條件異質變異數(ARCH)模型,此模型假

    定條件變異數不再是固定常數而是過去干擾項平方的線型函數,為實証方

    法上一項偉大的突破。在考慮多個變數的聯立動態體系中,由於跨方程式

    間可以互相提供額外的訊息,往往可以增加估計的效率性,直覺上比單變

    數的設定更能掌握資料的實際情形。故往後的學者便提出了多元自迴歸條

    件異質變異數(Multivariate ARCH) 模型,此一模型亦有其缺點存在,因

    其待估計參數過多,形成自由度嚴重減少,將導致估計值缺乏效率性。所

    以如何利用可獲得的有限資料對模型進行更有效率的估計方式,此為研究

    Multivaria te ARCH的重要課題。本文將對Multivariate ARCH做一系列

    的介紹,並利用VAR 的貝氏方法對參數進行估計。而多元因素AR CH模型

    也是探討的重點。


    目錄
    第一章 緒論 2
    1.1 研究動機與目的..........2
    1.2 論文架構安排..........3
    第二章 自迴歸條件異質變異數(ARCH)模型的設定 5
    2.1前言..........5
    2.2 單變數ARCH模型..........6
    2.3 多元自迴歸條件異質變異數(MARCH)模型..........10
    2.4 因素ARCH模型..........15
    第三章 MARCH模型之非恒定行與估計檢定方法18
    3.1 前言..........18
    3.2 MARCH模型非恒定行與共積性..........19
    3.2.1 MARCH模型的非恒定條件..........20
    3.2.2 MARCH模型的共積條件..........29
    3.3 MARCH模型之估計與檢定..........33
    3.3.1 QMLE估計式的漸進分配性質..........34
    3.3.2 模型參數的檢定..........38
    3.4貝氏VAR的估計方法..........41
    3.4.1 VAR模型的表現式..........41
    3.4.2 貝氏VAR之估計方法..........43
    第四章 實証研究 45
    4.1 前言..........45
    4.2 單變數ARCH模型的實証分析..........46
    4.3 多變數的實証分析..........49
    4.3.1對角落後遞減模型之估計..........49
    4.3.2 Factor ARCH模型之估計..........51
    4.3.3 貝氏VAR之估計方式..........53
    4.4 模型評估..........59
    第五章 結論與建議 61
    5.1 結論..........61
    5.2 建議..........62

    參考書目
    一、中文部分
    何祖平,中華民國八十年七月,多元自迴歸條件異質變異數模型--國際主要貨幣關聯性之研究,國立政治大學國際貿易研究所碩士論文
    行政院經濟建設委員會經濟研究處,中華民國八十年六月三十日,短期總體經濟預測。
    二、英文部分
    Baillie , Richard T. Tim Bollerslev,1990,A multivariate generalized
    ARCH approach to modeling risk premia in forward foreign rate markets
    , Journal of International Money and Finance 9,309-324.
    Bollerslev Tim,19S6,Generalized autoregressive conditional heteroskedas-ticity,
    Journal of Econometrics 31,307-327.
    Bollerslev Tim,1990,A Unified Approach To Robust, Regression- Based
    Specification Tests, Econometric Theory 6,17-43.
    Bollerslev Tim, Ray Y. Chou & Kenneth F.Kroner,1992, ARCH mod-elling
    in finance, Journal of Econometrics 5?,5-59 .
    Dickey, D.A. and W.A. Fuller, 19S1,Likelihood Ratio Statistics for Autoregressive
    Time Series With A Unit Root ,Econometrica, 49,4,1057-1079.
    Diebold, Francis X. and Mark Nerlove,1989,The dynamics of exchange
    rate volatility: A muitivariate latent factor ARCH model, Journal of
    Applied Econometrics 4,1-21.
    Diebold, Francis. X. and Peter Pauly,1988b,Has the EMS reduced member
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    Engle, Ro bert F .1982,Autoregressive conditional heteroskedasticity with
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    Engle, Robert F.1983,Estimates of the variance of U.S. inflation based
    on the ARCH model, Journal of Money, Credit and Banking 15, 286-301.
    Engle, Robert F ., Clive W.J.Granger,1987,Cointergration and Error Correction:
    Representation, Estimation and Testing, Econometrica,55,2,251-276.
    Engle, Robert F. and Tim Bollerslev,1986,Modelling the persistence of
    conditional variances ,Econometric Review 5,1-50,81-87.
    Engle, Robert F. and Tim Bollerslev,1989,Common Persistent in Conditional
    Variance, U. C. San Diego Discussion Paper ,89-54.
    Engle, Robert F. and Victor K.Ng,1990 , An examination of the impact
    of volatility shocks on the short end of the term structure based on a factor-ARCH model for treasury bills, Journal of Econometrics,45,213-237.
    Engle, Robert F. ,Clive W.J. Granger, and Dennis F .Kraft ,1984, Combination
    competing forecasts of inflation using a bivariate ARCH model,
    Journal of Economic Dynamics and Control 8,151- 165.
    Engle, Robert F. David M. Lilien, and Russel P. Robins, 1987, Estimating
    time varying risk premia in the term structure: The ARCH-M
    model, Econometrica 55,391-407.
    Fama,Eugene,F.,1965,The behavior of stock market prices, Journal
    of Business 38,34-105 .
    Hsieh, David A. ,1989a,Modelling heteroskedasticity III daily foreign
    exchange rates , Journal of Business and Economic Statistics 1,307-31 7.
    Kroner, Kenneth F .and Stijn Claessens,1991 ,Optimal currency composition
    of external debt: Applications to Indonesia and Turkey ,Journal
    of International Money and Finance 10,131-148.
    Lee, Tom K., 1988,Does conditional covariance or variance explain time
    varying risk premia in foreign exchange return? ,Economics Letters 21,371-373.
    Milhoj ,Anders ,1987a,A conditional variance model for daily observations
    of an exchange rate, Journal of Business and Economic Statistics5,99-103.
    Taylor, Stephen J ,.1986,Modelling Financial Time Series (Wiley, New York, NY).
    Tim Bollerslev & Jeffrey M.vVooldridge,1992,Quasi-Maximum Likelihood
    Estimation and Inference In Dynamic Models With Time Varying
    Covariances, Econometric Reviews 11(2),147-172.
    White,Halbert,1982,Maximum likelihood estimation of misspecified
    models, Econometrica 50,1-25.
    Wooldridge, Jeffrey M., Specification testing and quasi-maximum -likelihood
    estimation,1991,Journal of Econometrics 48, 29-55.

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