A savings glut in other countries is one possible reason for the U.S.:

Question

Quizplus · Accepted Answer

A savings glut in other countries means that those countries are saving more than they are investing, leading to a surplus of savings. This surplus of savings can then be invested in other countries, such as the U.S., leading to a capital account surplus. However, this influx of foreign capital can also be used to purchase U.S. imports, leading to a trade deficit. Furthermore, if the U.S. is borrowing heavily to finance consumption, it can also lead to a current account deficit. Therefore, all three options (current account deficit, capital account surplus, and trade deficit) are possible consequences of a savings glut in other countries.

A Savings Glut in Other Countries Is One Possible Reason