Supermarket News reports truck driver shortages are playing a major role in higher freight and shipping costs, which have led to recent future price increases announced by manufacturers, such as Mondelez International, Hershey, Nestles and Coca-Cola. 

A CEO of a driver training system cites a specific example -- a truckload of refrigerated food from Washington state to New York state coast approximately $8,450 in January of this year. A few weeks later the same trip cost $10,000. There aren't enough trucks and drivers for demand. The shortages look like they will continue in 2019 as well, according to the article.