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Azzeddine M. Azzam, John F. Yanagida, Dean Linsenmeyer, A Linked Econometric Model of the Livestock-Feed Sectors in Nebraska and the Rest of the United States, North Central Journal of Agricultural Economics, Vol. 9, No. 2 (Jul., 1987), pp. 247-258
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Azzam et al. (1987) studied this question.
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