6Goodwin, B. K. , and O. Mahul. "Risk Modeling Concepts Relating to the Design and Rating of Agricultural Insurance Contracts. " World Bank Policy Research Working Paper 3392, 2004.
7Harwood, J. et al. "Managing Risk in Farming: Concepts, Research, and Analysis. " Agricultural Economic Report No. 774, ERS USDA, 1999.
8Sherrick, B.J., F.C. Zanini, G.D. Schnitkey, and S.H. Irwin. " Crop Insurance Valuation under Alternative Yield Distributions. " Amer. J. Agr. Econ. 86, 2, (2004) : 406 -419.