Recent volatility in food prices in the grain market has generated much interest among agricultural market participants. This study examines the nonlinear dynamic relationship between spot and futures prices in grain markets. The empirical results provide strong evidence of price asymmetries. The corn spot price adjusts faster to futures price increases than futures price decreases, whereas the soybean spot price adjusts faster to futures price decreases than futures price increases. Although this asymmetric adjustment is found for a single market in Ontario, Canada, the results may also provide insights on the spot‐futures price convergence issues in other commodity markets.
409 410 CANADIAN JOURNAL OF AGRICULTURAL ECONOMICS d élevage intensif de la province. La demande pour le maïs comme aliment pour le bétail est un facteur déterminant du prix local du maïs pour tous les silos-élévateurs. Le déclin du porc et des bovins ainsi que l'augmentation de 50 % de l'offre de maïs ont menéà la diminution notée du prix du maïs local malgré l'augmentation significative de la demande pour l éthanol.
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