Many of the North American railroads have introduced differentiated services for grain shipments in the past decade. Most interesting have been innovations in guaranteed railcar service which have evolved since their inception. In most cases, pricing and allocation of these services have used...

Changes in crops, increased demand, reductions in natural gas prices, and spatial competition among producers and imports are affecting the nitrogen fertilizer industry. A spatial competition model of the US nitrogen fertilizer industry was developed to determine the likely future spatial...

type="main" xml:lang="fr" <p>La culture du canola aux États-Unis a crû considérablement au cours de la dernière décennie. Cette culture comporte des risques et rivalise avec d'autres cultures pour lesquelles divers mécanismes de réduction des risques ont été mis en place. Les...</p>