The current account deficit, which essentially reflects U.S. expenditure exceeding income, rose sharply in the third quarter to its highest level in 15 years, driven by a reduced surplus in services and a surge in goods imports as businesses rushed to build up inventories in the face of strong demand.
“The $16.5 billion widening of the current-account deficit in the third quarter reflected a reduced surplus on services and expanded deficits on secondary income and on goods that were partly offset by an expanded surplus on primary income,” the Commerce Department said.
Many economists argue that a current account deficit is not inherently good or bad—for instance, it could be related to timing, with temporarily higher imports within a given period later offset by higher exports at a later date.
But economists also generally agree that a current account deficit is bad and can lead to harmful impacts when it becomes unsustainable.
“Although a current account deficit in itself is neither good nor bad, it is likely to be unsustainable and lead to harmful consequences when it is persistently large, fuels consumption rather than investment, occurs alongside excessive domestic credit growth, follows an overvalued exchange rate, or accompanies unrestrained fiscal deficits,” according to the World Bank.
While the United States is to some extent insulated to some of the harmful impacts of a current account deficit as the U.S. dollar is the world’s reserve currency and the country is seen as an attractive place to invest, excessive reliance on large inflows of money from abroad can be problematic.
If investors sour on U.S. Treasurys, for instance, this could drive up yields and cause borrowing costs to balloon. A U.S. current account deficit “reckoning” would, according to Edwards, lead to a painful adjustment that would sap economic growth.