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In this paper the performance of the food and beverage industry in six regions of Canada between 1961 and 1984 is examined. The impact of spatial variations in commodity prices and techniques of production on the rate of profit are separated. Significant regional disparities in both production and market performance exist within the food sector and lend little support to the industry-mix thesis. Price variations are the principal cause of regional differences in manufacturing profitability. The rate of profit in the food industry declined in all regions, though at a slower rate than in manufacturing as a whole.
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David L. Rigby (1990) studied this question.
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