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>

Wheat protein is one of the most important specifications used in domestic and import purchase contracts and is used partly as a proxy for functional quality. The purpose of this article is to analyse the demand for wheat delineated by protein class. A choice-based econometric model is specified...

This study develops a methodology to quantify risks associated with projected commodity flows in a spatial optimization model. In this paper it is applied to the world grain trade which is characteristic of numerous commodities and with complicated and competing logistical channels in world...

Ethanol expansion has the prospect of having major impacts on cropping patterns and the spatial distribution of grain flows. These changes are in addition to those being driven by developments elsewhere in the world grain economy, including growth in consumption (e.g., China) and production in...

Major changes are occurring in the logistics of container shipping including growth in demands, increased ship size and development of new ports and routes to serve the US market. The Panama Canal is in the process of being expanded and potential exists for shipping through the Northwest Passage...

The purpose of this paper is to analyze spatial competition, congestion and flows of container imports into the United States. An intermodal network flow model is developed and used to analyze congestion in the logistics system for container imports. The results indicate that congestion exists...