US productivity falls for first time in nearly 4 years

In this Nov. 4, 2019, photo a worker prepares a piece of Cat construction equipment made by Caterpillar to be lifted off a trailer at the Port of Tacoma in Tacoma, Wash. On Wednesday, Nov. 6, the Labor Department issues revised data on productivity in the second quarter. (AP Photo/Ted S. Warren)

WASHINGTON — American workers were less efficient in the July-September quarter, pushing down productivity for the first time since late 2015.