Recently, the motor carrier industry has experienced: (1) the sharp decline of vehicle (tractor) re-sale values, and (2) the substantial increase of vehicle insurance premiums. This study examines how motor carriers should adjust their vehicle replacement policies when dramatic changes of...

We propose a decision tool for truckload carriers that can help control driver turnover rates. Our approach is to use an existing econometric method, along with the drivers' work data, to predict the quit probability of each driver on a weekly basis, so that carriers can identify a subset of...

This study evaluates the impact of six genetically modified corns on swine and poultry feed costs and on the use of traditional feed ingredients. A Brill linear programming model was used to calculate least-cost feed rations for broilers, layers, tom turkeys, 8-13 pound pigs and finisher hogs....

High oil corn (HOC) is a genetically enhanced variety of corn that is gaining popularity as a commercial feed ingredient. HOC has an enlarged germ and contains higher levels of crude oil, protein, and amino acids than conventional corn. To capture the increased feed benefits of HOC, it must...