Budget deficits and the resulting national debt are important not only in themselves; they also contribute to a country’s current-account deficit, which is the difference between its level of domestic investment by businesses and households in structures and equipment and the amount that it saves to finance those investments. That amount, which includes the saving of businesses and households, is reduced by the amount that the government borrows.
预算赤字及其所导致的国民债务之所以重要，不仅在于它们本身，还在于它们对一国经常项目赤字的作用，后者是来自企业和家庭对建筑和设备国内投资与其为这些投资所做的储蓄水平之差。这个数字——它包括了企业和家庭储蓄——要减去政府所借的钱的数量。