The NYT gave us yet another account of an industry that apparently can't get enough workers:

"Trucking is a brutal job. Drivers endure long, tedious stretches where they are inactive but have to stay focused, and they spend weeks at a time away from home. For those and other reasons, the industry’s biggest problem has been the scarcity and turnover of drivers, making it hard to keep up with shipping demand."

According to the Bureau of Labor Statistics, the average hourly wage for production and nonsupervisory employees in the trucking industry went up 2.4 percent. If it is really the case that the industry can't get enough drivers, they may try raising the pay. This is at least what the intro econ textbooks would say.