Changes in rail rates for U.S. commodity grain shipments over time

The deregulation of the U.S. railroad industry has largely been considered a success, as costs and rates have fallen due to changes in the mix of traffic and industry consolidation. However, rates did not fall as quickly as costs, and since 2000 rates have been rising while many measures of cost have remained relatively stable. We investigate these changes in rail rates using a sample of agricultural shipments from 2000–2016. We provide evidence that even after controlling for changes in cost drivers such as fuel, the relationships between prices and determinants have changed over time, suggesting that railroad pricing rules have driven increases in rates faced by shippers.