Price Dynamics in the North American Wheat Market
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This study examines price dynamics in the U.S. and Canadian hard red spring (HRS) and durum wheat markets. Using monthly prices for 1979-2002, we adopt Johansen cointegration tests and a vector error-correction (VEC) model. The results show that U.S. hard red winter (HRW) and Canadian HRS are exogenous in the model consisting of U.S. HRW and HRS and Canadian HRS prices. Canadian durum is exogenous in the model of U.S. and Canadian durum prices. Therefore, the results suggest that the HRW exporting industry and Canada have been the price leader in North American wheat markets.