WASHINGTON — U.S. factory activity grew at the slowest pace in six months in December, weakened by declines in orders and production. Yet growth was still healthy, a sign that manufacturing may help drive the economy’s expansion in 2015 as it did last year.
The Institute for Supply Management, a trade group of purchasing managers, said Friday that its manufacturing index fell to 55.5 in December from 58.7 in November. Any reading above 50 signals expansion. November’s figure was just below a three-year high reached in October.
December’s reading is the lowest since June. But it is also close to the average for all of 2014 and remains at a solid level. Americans are buying more cars and appliances, boosting demand for factory-made goods.



