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標題: Crude oil hedging strategies using dynamic multivariate GARCH
作者: Chang, Chia-Lin;McAleer, Michael;Tansuchat, Roengchai
Contributors: 國立中興大學應用經濟學系
National Chung Hsing University,Department of Applied Economics
Miao-zhen Luo
關鍵字: Multivariate GARCH;Conditional correlations;Crude oil prices;Optimal;hedge ratio;Optimal portfolio weights;Hedging strategies;autoregressive conditional heteroskedasticity;futures;market-efficiency;cointegration vectors;generalized arch;volatility;models
日期: 2011-9
Issue Date: 2012-10-19 14:40:33 (UTC+8)
摘要: The paper examines the performance of several multivariate volatility models, namely CCC, VARMA-GARCH, DCC, BEKK and diagonal BERK, for the crude oil spot and futures returns of two major benchmark international crude oil markets, Brent and WTI, to calculate optimal portfolio weights and optimal hedge ratios, and to suggest a crude oil hedge strategy. The empirical results show that the optimal portfolio weights of all multivariate volatility models for Brent suggest holding futures in larger proportions than spot. For WTI, however, DCC, BM and diagonal BEKK suggest holding crude oil futures to spot, but CCC and VARMA-GARCH suggest holding crude oil spot to futures. In addition, the calculated optimal hedge ratios (OHRs) from each multivariate conditional volatility model give the time-varying hedge ratios, and recommend to short in crude oil futures with a high proportion of one dollar long in crude oil spot. Finally, the hedging effectiveness indicates that diagonal BEKK (BEKK) is the best (worst) model for OHR calculation in terms of reducing the variance of the portfolio. (C) 2011 Elsevier B.V. All rights reserved.
Relation: Energy Economics, Volume 33, Issue 5, Page(s) 912-923.
Appears in Collections:[依資料類型分類] 期刊論文
[依教師分類] 張嘉玲

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