Monetary policy effects on inequality are modest

The DNB analysis, combining academic literature with a two-asset Heterogeneous Agent New Keynesian (HANK) model calibrated to euro area data, examines the distributional effects of monetary policy.

It concludes that while monetary policy does influence inequality, these effects are generally modest compared to its broader macroeconomic stabilization benefits.

Crucially, monetary policy is unlikely to be a first-order determinant of long-run inequality, which is primarily shaped by structural forces such as technological change, globalisation, and tax systems.

The study emphasizes that the distributional consequences are temporary in nature and limited in magnitude, aligning with much of the empirical literature on the subject.

This perspective helps clarify trade-offs and informs proportionality assessments for central banks.

The study finds that monetary policy's effect on inequality is dynamic.

Initially, monetary easing tends to temporarily increase income and wealth inequality, as higher asset prices and capital gains disproportionately benefit households with larger financial asset holdings.

This short-run effect gradually reverses.

Over time, improved macroeconomic conditions strengthen employment, labor income, and savings, particularly among lower-income households, which then reduces inequality.

Financial channels, like asset-price revaluations, primarily benefit higher-income households, while labor-market channels tend to be equalizing, benefiting lower-income households more from stronger employment and wage growth.