1Karl D. meilke. Another look at the hog-ratio. American Journal of Agricultural Economics,2007,59( 1 ) :216 - 219.
2Blosser, R. H. The Corn-Hog Price Ratio is Poor Indicator of Hog Profits. Journal of Farm Economics, 1965,47 (2) :467 -468.
3Fred Gale, Daniel Marti, and Dinghuan Hu. China' s Volatile Pork Industry. A Report from the USDA Economic Research Service www. ers. usda. gov ,27-05 -2012.
4Lawrence, J. Hog:Corn Ratio What Can We Learn From the Old School? . http ://www. econ. iastate, edu/outreaeh/agricuhure/periodi- eals/ifo/doeuments/ifol01606_000, pdf,accessed May 2007.
5Paul MacDonald. Hog Barley Price Ratio. www. gov. pc. ca/agriculture/index, php3? number =71873 ,accessed March 1997.
