mpc 03 144 the differential effects of rail rate deregulation us corn wheat and soybean markets prepared by john bitzan kimberly vachal tamara vanwechel dan vinje upper great plains transportation institute north dakota state university for marketing program agricultural service united states department agriculture june 2003 acknowledgment researchers want to acknowledge valuable contribution at in their support discussions this research disclaimer contents report reflect views authors who are responsible facts accuracy information presented herein document is disseminated under sponsorship centers interest exchange government assumes no liability or use thereof i executive summary it important understand distribution incidence influences associated with rates objective was provide insight into inter intra commodity differentials observed since were deregulated 1981 a cross sectional time series analysis shipments considered
