Midwestern corn-soybean fanners have approached the past row planting seasons facing input and output price relationships not previously experienced. These new relationships add complexity to short-run production decisions as the planting season draws near. Decisions must be made. concerning fertilization rates and. proportions of com and soybeans to plant; furthermore, delays in the decisions are extreme1y costly due to the timeliness penalty associated with late plantings. These pew price relationships and the forced action situation facing decision makers have created renewed interest in the impact of variable prices on input levels and output mix.