The AI build-out increases real interest rates by demanding vast amounts of capital, crowding out other investments. Simultaneously, it pushes up nominal rates by creating inflationary pressure on physical resources like labor, energy, and materials needed for data centers.

AI's productivity gains could lower inflation long-term. However, Goolsbee warns that the current massive investment in AI infrastructure can overheat the economy in the short run by driving up demand for resources and labor, forcing the Fed to raise rates, similar to the 1990s tech boom.

Contrary to the idea that AI justifies rate cuts, the boom is likely increasing the neutral rate of interest (R-star). By stimulating corporate investment and household consumption, AI creates upward pressure on rates, which limits the Federal Reserve's ability to ease monetary policy.

For 2026, AI's primary economic effect is fueling demand through massive investment in infrastructure like data centers. The widely expected productivity gains that would lower inflation (the supply-side effect) won't materialize for a few years, creating a short-term inflationary pressure from heightened business spending.

While AI is expected to be disinflationary long-term, its immediate impact could be inflationary. The massive capital expenditure required to build AI infrastructure will significantly increase demand in a fully employed economy before the productivity benefits are realized.

For central bankers, AI presents a paradox. While it's disinflationary in the long run via productivity, it's inflationary now. The massive investment in infrastructure and the wealth effects from AI stocks are juicing demand today, while the supply-side benefits will only materialize later, creating a near-term policy challenge.

In the short-term, AI's economic impact is inflationary. The surge in demand from data center investments and stock market wealth effects is outpacing the supply-side gains from productivity. This imbalance argues for higher, not lower, interest rates to manage current inflation.

Certain sectors, like AI infrastructure and air travel, exhibit highly inelastic demand. Companies and consumers continue spending despite huge price hikes, suggesting the Fed's interest rate tool may be ineffective at cooling these key inflationary drivers.

A single neutral interest rate may not exist. There could be one R-star for the investment-heavy AI sector and another for housing. A separate R-star might even be needed for financial stability. This divergence means the Fed faces a policy trade-off where a rate that balances one part of the economy could destabilize another.