U.S. manufacturing productivity rose more than initially estimated in the third quarter, driven by a stronger showing in durable-goods output, a development that points to improved efficiency on factory floors. Output in durables was revised higher to a 3.6 percent increase, while hours worked fell 1.7 percent. For total manufacturing, productivity rose at a 3.7 percent annual rate, revised up from 3.3 percent. Unit labor costs in durable manufacturing were revised to no change from a 0.6 percent increase in the preliminary report, reflecting the stronger productivity gain. Productivity measures output per hour and unit labor costs reflect labor compensation relative to productivity.