A thermometer of the goods-based economy is slowing down

Scott Olson/Getty Images Freight shipment volume across all modes of transportation – truck, rail, air, and barge – rose 6% in August. That is the smallest increase since October 2017. Shippers are going to be out of luck for a while capacity remains tight and costs rise. The signs that the infamous cyclicality of the transportation industry is changing direction once again are still timid. This industry is a thermometer of the goods-based economy. And it has been hopping! But the first such...