K-shaped economy – A growing share of U.S. spending is driven by the top earners, fueling a K-shaped divide. Analysts weigh its causes and political fallout.
A striking shift in how Americans spend money is reshaping the political conversation: more than half of all U.S.. consumer spending is now driven by the top 10 percent of earners, leaving much of the country in relative stagnation.. The pattern has been dubbed a “K-shaped economy. ” a concept that captures how economic life appears to be splitting into divergent realities rather than shared experiences.
In a recent discussion co-hosted on a podcast featuring FP economics columnist Adam Tooze. the debate centered on what is driving that divergence and what it could mean for U.S.. democracy.. The conversation focused on whether the long-discussed “Cantillon Effect” can explain the gap. whether the same dynamics are appearing globally. and how such a divide may distort the meaning of mainstream economic data.
At the heart of the Cantillon Effect is a distributional view of monetary expansion.. The concept. originating with early economist Richard Cantillon. suggests that when an economy receives a surge of credit and money. the impact does not land evenly.. Instead, it first reaches specific people and sectors—those who get to spend newly created purchasing power earliest.. As that group’s consumption rises, it shapes economic momentum and becomes the first beneficiary of the policy-driven credit shock.
That matters because it undermines the assumption that monetary policy is “neutral” across society.. In the era that includes quantitative easing and other large-scale interventions. the distributional consequences have moved to the center of debate.. Tooze said the Cantillon idea is “powerful” because it explains why policy can produce uneven outcomes even when it is framed as macroeconomic stabilization.
Yet Tooze also argued that the K-shaped pattern being observed now may be driven by something different from the classic Cantillon picture.. In his view. the current period is better understood through credit that is “endogenously generated” rather than simply pushed into the economy from outside.. The key mechanism. he said. is that investment and confidence in particular sectors can lead to credit creation that then amplifies gains for those positioned to benefit early.
That shift helps explain why the divide appears most visible in wealth portfolios at the top.. Tooze emphasized that wealth ownership in the United States is highly concentrated.. In that setting. changes in the fortunes of a smaller share of people can dominate broad measures—particularly those tied to top wealth holdings—while the bottom of the distribution may not only lag but. in his framing. hold negative wealth.
The implication is that the K-shaped acceleration may be sustained by a loop of optimism. valuation. and financing—especially as more of the relevant activity is increasingly supported through credit creation rather than only existing cash reserves.. That raises a central question: is this boom durable. or does it amount to a bubble dependent on forecasts that have yet to be validated by profit flows?
The conversation then broadened beyond the United States.. While the K-shaped metaphor is frequently used to describe American growth and stagnation. Tooze said the concept can be applied elsewhere in different ways.. In Europe, he noted, growth opportunities can appear limited at the macro level, reducing the space for big divergence.. Still, he pointed to signs of convergence within Europe, including faster growth in parts of Eastern Europe and in Spain.
China, however, has become a prominent example in the global discourse.. Tooze said many accounts of China mirror the American discussion: new centers of growth tied to areas such as technology and green energy may be expanding. while other parts of the economy—especially real estate—remain under strain.. He also flagged concerns around youth unemployment and precarious work in the gig economy in China. and he said Western narratives about China increasingly include a divergence story.
Zooming out to the world economy. Tooze argued that the key risk may be the “bottom leg” of the global distribution—fragile economies that struggle to catch a break.. In his view. repeated shocks have piled up: the COVID period. the 2022 energy and food price shock. and more recently another price shock.. Between those events. he said the largest tightening of monetary policy since the 1970s effectively pushed many lower-income emerging markets out of global bond markets. forcing them into net payments to foreign creditors.
That global squeeze becomes especially dangerous in scenarios involving disruptions to trade routes and energy supplies.. Tooze referenced IMF estimates about potential economic stress if the Hormuz Strait remains closed. warning that rich countries may find ways to absorb shocks while countries with limited foreign exchange reserves and high import exposure would be more vulnerable.. He singled out countries such as Egypt, Pakistan, Bangladesh, Ethiopia, and others as particularly stressed in such worst-case scenarios.
The shift from shared national experience to divergent outcomes also changes how economists and policymakers interpret the data.. Tooze argued that K-shaped dynamics raise “profound” questions about whether averages can still reflect lived reality.. In a world where different parts of the economy move in opposite directions, aggregate numbers risk becoming misleading.
He pointed to U.S.. trade data as an example.. Overall trade may look relatively flat, even if imports shift because of tariffs and protectionist pressures.. But within those totals. different categories can diverge sharply—he cited a scenario in which non-AI imports fall. while AI-related imports surge.. The result is a trade picture that can obscure a split between demand driven by an AI investment boom and other signs of a slowing or more pressured economy.
This divergence also changes the information environment around economic reporting.. Tooze suggested that journalists and business media often respond by turning to institutions that engage daily with household constraints—banks. credit card companies. and major retailers—because those groups may better reflect how stress is showing up at the ground level.
Consumer sentiment measures can show similar patterns.. Tooze noted that even when indicators such as overall consumer confidence decline. the experience may be uneven across households. with parts of the population hit harder while wealthier households remain comparatively buoyant.. He said Michigan surveys have been vocal about such internal splits.
As the gap becomes more visible, the political implications become harder to ignore.. Tooze described disaffection and nonparticipation in elections as a chronic challenge for U.S.. democracy, tying it to social disenfranchisement.. In that framing. the bottom half’s anger—or sense of exclusion—may not always translate into direct political mobilization; it can also produce alienation.
Still. he offered an additional lens that suggests the political response may not be a simple mirror image of economic hierarchy.. He described an “E-shaped” alternative, implying a three-tier structure rather than just two.. He emphasized that while some people are increasingly pushed out of the mainstream of consumption and growth. the United States is not currently experiencing the kind of broad unemployment surge that would signal a deep crisis.
Instead. he highlighted a middle group struggling to “just get by.” He referred to this as the “Costco set. ” households that are price-sensitive but still seeking decent-quality groceries and are not desperate.. Tooze connected this tier to political behavior, noting that candidates prioritizing cost-of-living concerns have been able to mobilize these voters.
That matters for electoral strategy and for how parties might read the electorate. Tooze suggested that Republicans may face electoral punishment in midterms, partly because the middle tier that feels the pinch could be more likely to turn out and voice frustrations through the political system.
In a country where economic signals increasingly point to divergent realities. the central question may be whether politics will reflect that split.. The discussion left no doubt that averages are becoming less informative. monetary and sectoral forces are producing uneven fortunes. and the next phase of U.S.. politics may hinge on which tier of Americans feels heard—and which feels left behind.
K-shaped economy Cantillon Effect U.S. consumer spending economic data averages wealth concentration U.S. midterms political effects