"From $200 billion in 2024, capital spending by the five largest
investors in AI data centers—Alphabet, Amazon, Meta, Microsoft, and
Oracle—is projected to approach $1 trillion
by 2027. “For reference, total private investment in the economy is
about $5.5 trillion dollars,” said Minneapolis Fed Monetary Advisor Alisdair McKay. “We’re talking about 20 percent of investment coming from this one category.”
All else equal, this surge in data center spending and demand for
investment funding would constitute strong macroeconomic forces pushing
real interest rates higher.1 But for all the lofty projections, AI-related investment is not moving the needle much at an economy-wide level.
Despite an unmistakable leap in an AI-relevant category like
information processing equipment (Figure 1, right axis), the growth path
of U.S. aggregate private investment looks similar to the trend since
2010 (Figure 1, left axis).
As a proportion of U.S. GDP, McKay notes that private investment remains
roughly flat since 2018. So far, the AI boom does not resemble prior
periods of investment growth in the 1990s and 2010s. Breaking investment
down into its four primary components shows part of the reason: The
shares of housing investment—and, to a lesser extent, investment in
nonresidential construction—are falling (Figure 2).
Current nominal interest rates are elevated from the ongoing battle
to vanquish inflation, which depresses or postpones investment in those
rate-sensitive construction categories. Intense investment demand for AI
data centers also drives up costs for construction inputs
and could attract funds that might otherwise go into housing. The net
result is something of a wash from a macroeconomic perspective. “You
would think that if you have this great opportunity” to achieve future
growth by investing in AI, McKay said, “you would increase the amount
you invest. But we have not done that in the aggregate.”
Minneapolis Fed Monetary Advisor and Assistant Director of Policy Cristina Arellano notes
that while the technology sector represents about 15 percent of U.S.
output, it comprises only 7 percent of U.S. consumption. As many
economists understand it, this investment-driven economic growth puts
less pressure on underlying interest rates than if spending were driven
by a more consumption-heavy category.
“The natural rate [of interest] is more linked to the consumption
growth rate, in terms of the frameworks we use to think about this,”
Arellano said. Growth focused in the tech sector “may have a smaller
effect on the natural rate because it’s not affecting consumption so
much.”
In many economic models, household and investor expectations of the
future can make a big difference today. If people expect to be richer
down the road, they spend more today and even borrow against that future
income. This would tend to increase real interest rates as the supply
of savings shrinks, especially in the context of high investment demand.
If, on the other hand, people worry about their jobs or the prospects
for their children, they might tend to save more as a precautionary
measure, having the opposite economic effect. Pessimism about the future
tends to keep rates in check today.
This classic “consumption smoothing” dynamic comes up often in speeches and papers about the macroeconomic impact of AI. Researchers analyzing significant movements of bond yields around major AI announcements interpret them under this theory.
For all the utopian-to-existential talk about AI around American
dinner tables, Arellano and McKay are skeptical that households are
behaving like the economic models. “I don’t think there are that many
people who connect that future—where all of us, where the economy is
richer—with, ‘I’m going to be richer,’” said McKay.
As for the scenario of fear-based savings pushing rates down,
Americans are showing no evidence of precautionary saving. The U.S. personal saving rate has been generally falling since AI hit the public consciousness and sits now near historically low levels.
However, beliefs about the future of AI are likely influencing
current consumption and interest rates through another channel: Soaring
stock wealth. Since ChatGPT debuted to the general public in November
2022, the S&P 500 stock index has risen 80 percent (as of late July
2026), driven by shares of tech companies associated with AI. “We think
that the marginal propensity to consume out of stock wealth is about 3
cents on the dollar,” said McKay. “So that would mean, ballpark,
one-half to 1 percent of GDP in consumption each year from this extra
wealth. That’s pretty big.”
The wealthiest 10 percent of U.S. households own almost 90 percent of American stock and mutual fund holdings; the richest households also account for a disproportionate amount of spending. Their consumption, supported by these equity gains, has helped sustain demand despite low sentiment among consumers overall."
"optimism . . . could motivate relatively stronger U.S.
consumption from AI-related wealth. This demand keeps the economy and
inflation running hotter, an argument for higher policy rates.
Aggregate consumer demand is held somewhat in check, however, by the
concentrated nature of AI-based wealth and by caution among consumers with lower wealth and income. AI-inspired spending is “not for every segment,” Arellano said, “especially for young people graduating from college.”"
"Relative price changes happen all the time; they do not necessarily
portend general inflation. But with core consumer inflation persistently
above the Fed’s 2 percent annual target, policymakers might take note
of categories where price increases are not only above historic averages
but accelerating—as is the case for computer-related equipment. Rising
prices for metals, power, and information technology could pass more
widely into the business costs for firms.
Policymakers generally “look through” supply shocks expected to
temporarily affect relative prices, such as a one-time increase in
tariffs or the war in Iran. “The AI impact seems like it could be more
persistent,” said McKay, with data center investment possibly reaching
into trillions of dollars and stretching years into the future. If so,
this might incline policymakers toward higher interest rates to contain
wider price increases and keep inflation expectations anchored."
"AI tools could bring a leap forward in helping companies adjust prices
more frequently and precisely. AI could turbocharge what economists call
“price discrimination”—think of it as personalized pricing—“by
facilitating the real-time analysis of consumer demand and price
elasticities,”"
"a world of instantaneous price adjustments and pass-through of costs
could amplify inflationary events. It could also make central banks’
jobs more difficult. “Those frictions shape the transmission of monetary
policy,” said Arellano. What economists call “nominal rigidities” of
prices (and wages) are understood to play a crucial role in translating
the Fed’s policy moves into reactions across the economy."
"there is a prominent counterargument that AI will restrain price increases or even drive many prices down. Recent findings by European researchers
found that a higher share of AI adoption by firms corresponded with
lower inflation in those sectors, with the productivity gains from AI a
possible “structural force dampening inflation.”"
Some Fed members think "productivity gains associated with AI adoption would eventually reduce
production costs and increase aggregate supply, which should put
downward pressure on inflation"
"these effects are not yet meaningfully apparent at a macroeconomic
level, where headline and core price indexes remain elevated. Nor are
they evident for the task where AI has been most immediately and heavily
put into action: computer coding. The consumer and producer price
indexes for software, historically deflationary, instead show
flat-to-rising prices since generative AI came on the scene.
Importantly, these measures also reflect AI-driven hardware price
pressures.2 Nonetheless, they display no ground-level signal of productivity leading to disinflation—quite the opposite."
"For the information services sector and the subsector that includes
software, rough calculations of productivity through 2025 (real
output-per-worker) are consistent with levels over the past 20 years. A large jump in 2023 coincides with the introduction of
ChatGPT. But that is followed by four quarters of productivity declines.
Rising productivity through 2025 is tantalizing, but within normal,
historic fluctuations."
"“If you look back at other types of technological
adoption—electricity, computers—they took decades to manifest in terms
of changing production processes and getting the productivity benefits,”
said McKay. “From a macro perspective, the main thing we are doing
right now is ‘building the machine.’”
McKay points out a disconnect between the tasks most likely to
benefit initially from AI and the physical investment that puts
demand-side pressure on the economy. “I don’t see that the productivity
benefits are going to show up in a way that makes it easier to build a
data center,” he said.
Researchers have documented a J-shaped pattern
to the adoption of general-purpose technologies. Measured productivity
actually decreases at first, as companies implement investments in
retraining, reorganization, and updating equipment. Although AI
awareness and experimentation are arguably spreading faster across the
economy than prior technologies, similar frictions are already appearing."
"The unemployment rate has held steady amid a persistent “low-hire, low-fire” labor market. AI has been cited for some notable layoffs in the tech sector, even as a broader study of 21,000 U.S. firms found AI adoption is associated with additional hiring."
"monetary policy has little influence over structural changes wrought
by technology. Nor do central banks tend to respond to scenarios in the
uncertain future. Fed policymakers are focused on today’s data, where
productivity gains are a work in progress and jobs are holding steady.
Data center investment, wealth-driven consumption, and possibly pricing
forces are creating heat—but this appears moderate in the aggregate, for
now.
“In the near term, whatever increase in the productive capacity of
the economy AI has brought, AI has brought a larger increase in demand,”
McKay said.
Big changes could still be on the way for the economy, maybe sooner than
later given the speed of AI investment, awareness, and diffusion. But
we are still near the start of the journey.
“It’s hard to just implement things really quickly, then adapt and
change,” said Arellano. “These processes are sort of slow. But I do
think there will be a lot of gains in the medium term.”"