6Hayenga , DiPietre. Cross -Hedging Wholesale Pork Products Using Live Hog Futures [ J] .American Journal of Agricultural Economics, 1982: 747-751.
7Raymond M Ieuthold, Philip Garcia, Nabil Chaherli.Information, Pricing and Efficiency in Cash and Futures- Markets: The Case of Hogs [J] .E- conomic Record, 1992 (12) : 27-33.
8Colin A Carter, Sandeep Mohapatra. How reliable are hog futures as fore- casts? [ J] American J.of Agricul- tural Economics, 2008 (2): 367- 378.
9Herna'n A Urcola, Scott H Irwin. Hog Options: Contract Redesign and Market Efficiency [J] .Journal of Agricultural and Applied Eco- nomics, 2010 (11): 773-790.
10Roger W Gray.The Prospects for Trading in Live Hog Futures, Futures Trading In Livestock. 1970: 125-132.