Is the AI buildout or the budget deficit absorbing national saving?
Core argument: US non-financial corporates remained net savers in the saving-investment balance data through the first quarter of this year, unlike the AI capex buildout narrative would suggest.
The chart shows quarterly data for the US saving-investment balance going back to 1990. This is an identity that apportions the current account balance into net saving in various sectors of the economy. Households tend to be net savers, as is the financial sector and non-financial corporates. The government tends to be a net borrower. The last time we had a lot of excitement about technological innovation and higher productivity growth was in the “IT bubble” of the early 2000s, which saw non-financial corporates flip from being net savers to borrowers, i.e. the capex buildout at the time was very large and - for a few years - accounted for the entire current account deficit. Nothing like that’s happening now. It’s government dissaving, i.e. the budget deficit, that’s eating up resources, while the non-financial corporate sector stayed a net saver in data through the first quarter of this year.




