Choi, Jung-Sup; Helmberger, Peter G. - In: Journal of Agricultural and Applied Economics 25 (1993) 01
A two-stage approach is used to estimate sensitivity of corn, wheat, and soybean yields to changes in prices and land ….82 for corn, wheat, and soybeans. Upper estimates of the elasticity of yield with respect to fertilizer equals +0.58, +0 ….29, and +0.16 for corn, wheat, and soybeans. Yields are found to be quite insensitive to price changes. Fertilizer demands and …