Are diverging investment rates driving wider global current account imbalances?
Core argument: The U.S. current account deficit widened by $228 billion to $1.13 trillion, equal to 1% of world GDP, while China's surplus rose $161 billion to $424 billion and the euro area's rose $198 billion to $461 billion.
Current accounts of major economies diverged significantly in 2024. The deficit in the United States widened by $228 billion to $1.13 trillion (1% of world GDP). Meanwhile, surpluses in China and the euro area increased by $161 billion to $424 billion and by $198 billion to $461 billion, respectively. Changes in investment rates uniformly contributed to widening saving-investment gaps, with an increased investment rate in the United States widening the current account deficit, and a decrease in key surplus regions (China, the euro area, and Japan) expanding the surpluses. The divergence in investment rates was accommodated partly by changes in private saving, which are estimated to have increased in the United States and decreased in the surplus countries—China, euro area, and Japan. However, in all cases, private saving compensated for only 10% to 50% of the investment change. Meanwhile, change in public saving magnified domestic imbalances through, while contributing to narrowing domestic imbalances in China.

