WASHINGTON (Reuters) - The U.S. goods trade deficit widened sharply in December as slowing global demand and a strong dollar weighed on exports, another sign that economic growth slowed in the fourth quarter.

A ship loaded with containers is pictured at Yusen Terminals (YTI) on Terminal Island at the Port of Los Angeles in Los Angeles, California, U.S., January 30, 2019. REUTERS/Mike Blake

Other data from the Commerce Department on Wednesday showed new orders for U.S.-made goods barely rose in December and business spending on equipment was much weaker than previously thought, pointing to a softening in manufacturing activity.

The reports, which added to weak December data on retail sales and housing starts, could prompt economists to cut fourth-quarter GDP estimates. But some of the drag on growth from the goods trade gap and weak business spending on equipment could be offset by a strong increase in inventories in December.

The goods trade deficit jumped 12.8 percent to $79.5 billion in December, boosted also by an increase in imports. Exports fell 2.8 percent amid steep declines in shipments of foods, industrial supplies and capital goods. Imports increased 2.4 percent driven by food and capital and consumer goods.

Retail inventories increased 0.9 percent in December after falling 0.4 percent in the prior month. Retail inventories, excluding motor vehicles and parts, the component that goes into the calculation of gross domestic product, rebounded 1.0 percent in December after dropping 0.9 percent in November.

Growth estimates for the fourth quarter are currently around a 2.0 percent annualized rate. The government will publish the fourth-quarter GDP report on Thursday. The economy grew at a 3.4 percent pace in the third quarter.

U.S. stocks added to losses after U.S. Trade Representative Robert Lighthizer said U.S. issues with China are “too serious” to be resolved by promises of more purchases of U.S. goods by Beijing. Prices of U.S. Treasuries modestly pared losses, while the dollar added to gains against the yen and euro.

FACTORY ACTIVITY SLOWING

In another report on Wednesday, the Commerce Department said factory goods orders edged up 0.1 percent in December amid declining demand for machinery and electrical equipment, appliances and components.

Data for November was revised slightly up to show factory orders falling 0.5 percent instead of the previously reported 0.6 percent drop. Economists polled by Reuters had forecast factory orders rising 0.5 percent in December.

Manufacturing, which accounts for about 12 percent of the economy, is slowing as some of the boost to capital spending from last year’s $1.5 trillion tax cut package fades. In addition, the strong dollar and cooling growth in Europe and China are hurting exports. Lower oil prices are also slowing purchases of equipment for oil and gas well drilling.

In December, orders for machinery dropped 1.0 percent after tumbling 2.0 percent in November. Orders for mining, oil field and gas field machinery plunged 5.2 percent after rising 1.9 percent in November. There were also decreases in orders for industrial machinery as well as turbines, generators and other power transmission equipment in December.

Orders for electrical equipment, appliances and components fell 0.3 percent after dropping 2.6 percent in November. Orders for transportation equipment rose 3.2 percent in December after increasing 3.1 percent in the prior month.

Orders for civilian aircraft and parts jumped 28.4 percent in December. Motor vehicles and parts orders rose 2.4 percent.

The Commerce Department also said December orders for non-defense capital goods excluding aircraft, which are seen as a measure of business spending plans on equipment, fell 1.0 percent instead of the 0.7 percent drop reported last week.

Orders for these so-called core capital goods declined 1.1 percent in November. Shipments of core capital goods, which are used to calculate business equipment spending in the gross domestic product report, were unchanged in December instead of the previously reported 0.5 percent increase.

Core capital goods shipments fell 0.2 percent in November.