The producer price index slipped 2.2% in November, and the core rate rose 0.1% in the month the Labor Department reported Friday.
The drop follows a 2.8% decline in October in the overall rate and a 0.4% rise in the core rate.
Thomson Reuters predicted a 2.0% drop in PPI and a 0.1% gain in the core.
Among prices for finished goods, the index for energy goods fell 11.2% in November following a 12.8% drop in October. Prices for consumer foods were flat after dropping 0.2% the previous month. Prices for goods other than foods and energy rose 0.1% in November compared with a 0.4% rise October.
