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題名:涉險值之衡量--多變量GARCH模型之應用
書刊名:經濟論文叢刊
作者:高櫻芬 引用關係謝家和
作者(外文):Gau, Yin-fengHsieh, Jia-ho
出版日期:2002
卷期:30:3
頁次:頁273-312
主題關鍵詞:涉險值(VaR)多變量GARCHValue at Risk (VaR)EWMAMultivariate GARCH
原始連結:連回原系統網址new window
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     由於預測一資產組合之未來的涉險值(Value at Risk)時,必須投入個別資產之報酬的變異數,及彼此之間的共變異變,因此本文分析多變量變異數預測模型對涉險值預測之精確度的影響。針對一外匯資產組合,本文比較的模型包括實務上最常使用的指數權數移動平均法(EWMA)、單變量(univariate)GARCH模型、與多變量(multivariate)GARCH模型。實證結果顯示,較具效率性的多變量變異數模型能夠有效提高涉險值預測模式之精確度,利於投資者或市場參與者更有效地控管風險性資產。
     The purpose of this paper is to study the impact of a more efficient covariance-variance estimate on the forecast of value-at-risk (VaR). One-day VaR forecasts are calculated based on the variance-covariance forecasts from the exponential weighted moving average method, currently the most commonly used method, the univariate GARCH-type models, and the BEKK multivariate GARCH models. Using a portfolio composed of three foreign exchange rates, the Japanese yen/US$, British pound/US$, and Deutschemark/US$, this paper evaluates the forecasting performance of VaR obtained from the above approaches. The empirical results show that the VaR calculated from the BEKK multivariate GARCH model outperforms other estimates from competing variance-covariance models.
期刊論文
1.Venkataraman, S.(1997)。Value at Risk for a Mixture of Normal Distributions: The Use of Quasi-Bayesian Estimation Techniques。Economic Perspectives,21(2),2-13。  new window
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6.Engle, R. F.(1982)。Autoregressive Conditional Heteroske- dasticity with Estimates of the Variance of U.K. Inflation。Econometrica,50(4),987-1008。  new window
7.Nelson, D. B.(1990)。ARCH Models as Diffusion Approximations。Journal of Econometrics,45(1/2),7-38。  new window
8.Zakoian, Jean-Michel(1994)。Threshold Heteroskedastic Models。Journal of Economic Dynamics and Control,18(5),931-955。  new window
9.Andrews, D. W. K.(1991)。Heteroskedasticity and Autocorrelation Consistent Covariance Matrix Estimation。Econometrica,59(3),817-858。  new window
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14.Bollerslev, Tim(1990)。Modelling the Coherence in Short-Run Nominal Exchange Rates: A Multivariate Generalized Arch Model。The Review of Economics and Statistics,72(3),498-505。  new window
15.Bollerslev, Tim、Chou, Ray Y.、Kroner, Kenneth F.(1992)。ARCH Modeling in Finance: A Review of the Theory and Empirical Evidence。Journal of Econometrics,52(1/2),5-59。  new window
16.Bollerslev, Tim、Wooldridge, Jeffrey M.(1992)。Quasi Maximum Likelihood Estimation and Inference in Dynamic Models with Time Varying Covariances。Econometric Reviews,11(2),143-172。  new window
17.Diebold, Francis X.、Mariano, Roberto S.(1995)。Comparing Predictive Accuracy。Journal of Business and Economic Statistics,13(3),253-263。  new window
18.Nelson, Daniel B.(1991)。Conditional Heteroskedasticity in Asset Returns: A New Approach。Econometrica: Journal of the Econometric Society,59(2),347-370。  new window
19.Glosten, Lawrence R.、Jagannathan, Ravi、Runkle, David E.(1993)。On the Relation Between the Expected Value and the Volatility on the Nominal Excess Returns on Stocks。Journal of Finance,48(5),1779-1801。  new window
20.Newey, Whitney K.、West, Kenneth D.(1987)。A Simple, Positive Semi-Definite, Heteroskedasticity and Autocorrelation Consistent Covariance Matrix。Econometrica,55(3),703-708。  new window
21.Jackson, P.、Maude, D. J.、Perraudin, W.(1997)。Bank Capital and Value at Risk。The Journal of Derivatives,4,73-90。  new window
22.Marshall, C.、Siegel, M.(1997)。Value at risk: Implementing a risk measurement standard。The Journal of Derivatives,4(3),91-111。  new window
23.Hoppe, R.(1998)。VaR and the unreal world。Risk,11,45-50。  new window
24.Robinson, G.、Lawrence, C.(1995)。How safe is RiskMetrics?。Risk,8,26-29。  new window
25.Hendricks, D.(1995)。Evaluation of value at risk model using historical data。Federal Reserved Bank of New York Economic Policy Review,2(1),39-69。  new window
26.McCurdy, T. H.、Stengos, T.(1992)。A comparison of risk-premium forecasts implied by parametric versus nonparametric conditional mean estimators。Journal of Econometrics,52,225-244。  new window
27.De Vries, C. G.、Danielsson, J.(1998)。Multivariate stochastic volatility models: Estimation and a comparison with VGARCH models。Journal of Empirical Finance,5,155-173。  new window
圖書
1.Markowitz, Harry M.(1959)。Portfolio Selection: Efficient Diversification of Investment。New York:Wiley。  new window
2.Engle, R. F.(1995)。ARCH: Selected Readings。沒有紀錄:Oxford University Press。  new window
3.Morgan, J. P.(1996)。Technical Document。Technical Document。沒有紀錄。  new window
單篇論文
1.Baba, T.,Engle R. F.,Kraft, D.,Kroner K. F.(1989)。Multivariate Simultaneous Generalized Arch,UCSD Department of Economics。  new window
其他
1.Bank for International Settlements(1996)。Amendment of the Capital Accord to Incorporate Market Risks,0。  new window
2.Bank for International Settlements(1996)。Supervisory Framework for the Use of Backtesting in Conjunction with the Internal Models Approach to Market Risk Capital Requirements,0。  new window
 
 
 
 
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