The US trade deficit increased in October as exports fell by a larger margin than imports, a sign that slower global growth could weigh on the US economy. On Tuesday, the Commerce Department said the deficit grew 4.8 percent in October from September, to $42.2 billion. Exports dropped 3.6 percent to $180.5 billion. Sales of commercial aircraft, autos, and farm products all declined. Imports fell 2.1 percent to $222.8 billion, reflecting fewer shipments of cellphones, autos, and machinery.
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