USDA’s Agricultural Marketing Service recently published asynopsisof research conducted in cooperation with the University of Oregon.
The research report,A Study of Grain and Soybean Export Flows: Uncovering Their Determinants and the Implications for Infrastructure Investment,探讨如何把tation costs and port attributes (e.g., channel depth) affected port choice from two perspectives — an importing country and an inland U.S. shipper.
They found a 1% increase in a port’s shipping costs corresponded to a 6% to 8% reduction in the port’s traffic.
In addition, they found a 1% increase in channel depth resulted in a port gaining 1% to 3% more business, and a 1% increase in berthing length resulted in about 1% more traffic.