Does low US saving explain the persistent trade deficit?
Core argument: The US personal saving rate has fallen from levels usually above 10% during 1960–80 to an average below 5% in post-pandemic data, with persistent federal budget deficits another cause of the low national saving rate.
The US personal saving rate has fallen from levels usually above 10% during 1960–80 to an average below 5% in post-pandemic data. Persistent federal budget deficits are another cause of the low national saving rate. Total saving in the United States is exceptionally low by international standards. Because US investment has not trended downward, a sizable and stubborn current account deficit has emerged [reflecting the incontrovertible identity NX=S-I]. If it is accurate that countries have a strong preference for claims on America, then we would expect other countries to invest most of their external assets in the United States. This is nowhere close to true. Figure 3 shows the share of the rest of the world’s foreign assets invested in the United States. That share hovered around 19% for the first part of this century before rising to nearly 25% starting around 2014, as the dollar appreciated (raising the relative value of claims on the United States) and the US stock market outperformed. Broadly speaking, these shares track the US share in global GDP, which in 2023 was 25.8%.

