Biggest U.S. Productivity Drop in Decades Sends Ugly Omen

Productivity over the past six months fell by the most in more than two decades, leading to increases in U.S. labor costs that threaten corporate profits.

The measure of employee output per hour decreased at a 1.9 percent annualized rate after a revised 2.1 percent drop in the prior three months, a Labor Department report showed Wednesday in Washington. The decline on average over the past two quarters was the biggest since the first six months of 1993. Expenses per worker increased more than projected at the start of the year.