In a potentially worrisome sign for the U.S. economy, domestic trucking shipments declined by almost 9 percent in November, marking the largest year-over-year decrease in almost six years, the industry's largest trade association said.The American Trucking Associations said in a monthly report that its seasonally adjusted truck tonnage index stands at its lowest level since late 2003, following an 8.8 percent decline versus the same month a year ago. The index fell 3.6 percent from the prior month.Because more than two-thirds of all manufactured...
