Economists Agree: K-Shaped Economy Widens as Wealth and Inequality Grow

The U.S. economy is increasingly characterized by a K-shaped pattern, where high-income households thrive while lower- and middle-income families face growing financial strain. The divergence is evident in spending habits and investment gains among top earners, while essential expenses and debt weigh on lower-income households. This divide is supported by data from the Federal Reserve, showing a significant rise in credit card balances and a higher share of income spent on necessities.

The K-shaped economy is also influencing business performance. Signet Jewelers, for instance, reported resilient earnings despite margin pressures from rising gold prices and tariffs. Management acknowledged that lower-income consumers are struggling relative to higher-income ones, a trend that could limit future margin opportunities.

The Federal Reserve Bank of Minneapolis has analyzed the K-shaped economy and found mixed results across different data sources. While some reports indicate a steep divergence in spending between top and lower-income households, others suggest a more clustered growth pattern in 2025. The Consumer Expenditure Surveys from the Bureau of Labor Statistics do not consistently support a K-shaped narrative.

What Drives the K-Shaped Economy?

Higher-income households are enjoying robust spending in areas like groceries, travel, and leisure. Their investment portfolios are also performing well, amplifying their financial gains. Meanwhile, lower-income households are increasingly relying on Buy Now, Pay Later services to cover essentials and are accumulating unmanageable credit card debt.

The top 20% of earners now account for nearly 60% of U.S. consumer spending. Additionally, a quarter of households spent over 95% of their income on essentials in 2025, indicating a growing number of families living paycheck to paycheck.

How Do Global Events Exacerbate Inequality?

The war in Iran has disrupted oil supplies through the Strait of Hormuz, causing energy prices to spike. This disproportionately affects lower-income households, who spend a larger portion of their budgets on energy. As a result, economists warn that the K-shaped economic divide is widening.

Higher oil and gasoline prices are pushing lower-income families further behind while higher-income households continue to thrive. Experts argue this dynamic exacerbates economic inequality and highlights the fragility of an economy where a small percentage drives the majority of consumption.

What Does the Data Say About Economic Divergence?

Moody's Analytics reports a significant K-shaped divergence in spending growth for the top 10% of households, with a 62% increase in spending from 2020 to 2025. However, critics argue that this data is flawed and may overstate the spending gap.

In contrast, the New York Fed and Bank of America's data suggest a less pronounced divergence in consumer spending, especially during 2025. The Bureau of Labor Statistics' Consumer Expenditure Surveys show erratic growth across different income quintiles, making it difficult to draw a clear K-shaped pattern.

The analysis concludes that the available data is inconsistent and limited in defining the shape of recent economic divergence. The article also suggests that wealth, not income, increasingly determines spending patterns for the richest households.

What Are the Implications for Businesses and Consumers?

Businesses like HealthEquity have seen strong performance despite the K-shaped economy. The company reported significant growth in HSA sales, adjusted EBITDA, and net income in Q4 2026. This performance indicates that even in a divided economic landscape, certain sectors can thrive.

Alimentation Couche-Tard reported mixed financial results for Q3 2026, with growth driven by acquisitions and convenience activities. Inflationary pressures and strategic investments offset some gains, highlighting the challenges businesses face in a K-shaped economy.

Kestra Medical Technologies also reported Q3 2026 financial results, noting a reconciliation of adjusted EBITDA to GAAP and providing forward-looking statements about anticipated performance and risks.

What Do Analysts Say About the K-Shaped Economy?

A Dallas Fed analysis found that the top 20% of earners account for 57% of consumption in post-Covid years, up from 53% in the 1990s. However, this shift has not made the economy significantly more fragile. Spending growth in areas like clothing and healthcare, where lower-income households have a larger share, was strong in 2025.

Economists like Samuel Tombs and Oliver Allen from Pantheon Macroeconomics argue that the K-shaped economy narrative may not fully capture the actual spending patterns of U.S. consumers. While sentiment among lower-income households has declined, actual spending behavior has not changed enough to confirm a K-shaped economy.

The debate around the K-shaped economy highlights the complexities of measuring true consumption patterns and understanding the economic impact on different income groups. As the economy continues to evolve, businesses and policymakers will need to navigate these divergent paths to address growing inequality.