Research & Insights

The Breakdown Between Wages and Inflation - Part 1: Exploring the Potential Role of Wealth Inequality as a Driver of Inflation and Market Instability

In this blog, PDI's Raphaele Chappe and Delilah Rothenberg challenge a foundational assumption underlying monetary policy: that wages are the primary driver of inflation. Drawing on the concept of "plutonomy" — economies where wealth and consumption are heavily concentrated among the affluent — they examine how the growing dominance of high-income households in aggregate demand may be fueling sector-specific inflation in housing, education, and healthcare, while simultaneously undermining the effectiveness of traditional policy tools like interest rate adjustments. The piece argues that for investors, central banks, and policymakers, understanding who is driving demand — and where that demand is concentrated — is essential to managing systemic risk and advancing more resilient, broad-based economic growth.