
doi: 10.2307/135852
Multivariate GARCH models are employed to estimate time-varying hedge ratios for three commodities traded on the Winnipeg Commodity Exchange. GARCH hedge ratios are shown to be superior to those based on the traditional regression approach to calculating the optimal hedge. Les ratios optimaux de comptant par rapport aux contrats a terme a la bourse de denrees de Winnipeg. L'auteur emploie des modeles multivaries de type GARCH pour calibrer les ratios optimaux de comptant par rapport aux contrats a terme pour trois denrees transigees a' la Bourse des denrees de Winnipeg. Ces ratios s'averent superieurs a ceux qu'on obtient par les methodes de regression traditionnelles.
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