Why Rate Curves & Inflation Are Rising United States vs. Euro Area — and where they diverge

Inflation and government bond yields are rising again across developed markets, but the forces behind the two moves are not the same.

In this analysis, LFG+ZEST separates the drivers of the latest repricing in rates and inflation across the United States and the Euro Area.

The recent acceleration in headline inflation has been driven primarily by energy. In Europe, energy inflation rose sharply in August, while underlying core inflation continued to cool. Services remain the stickiest component of the basket, but they have already moved materially below their post-Covid peak.

The United States presents a different picture. Shelter and services excluding housing have also moderated, but remain above their pre-Covid levels. With services representing a larger share of the US inflation basket and wage growth still relatively firm, the final stage back toward a sustainable 2% inflation rate appears more difficult.

At the same time, heavy government and corporate bond issuance has added pressure to yields through a different channel: the term premium.

This distinction is important. Bond supply can affect the return investors demand for holding long-duration assets, but it should not automatically be interpreted as an inflationary force. Our long-term analysis also challenges the simple assumption that larger fiscal deficits mechanically lead to higher interest rates.

The analysis then examines how central banks are responding.

Markets have moved from expectations of rate cuts toward a renewed debate around tightening. In Europe, the immediate ECB path is relatively well priced, but weak growth and cooling underlying inflation create scope for a more dovish outlook once the energy shock fades.

The United States remains the more asymmetric case. Stronger domestic demand, a resilient labour market and continued investment activity leave the Federal Reserve facing a more persistent inflation problem and increase the risk of rates remaining higher for longer.

The yield curve reflects this shift. Although the US curve has returned to a normal positive slope, the most recent sell-off has been driven primarily by the front end and the belly of the curve — a bear flattening consistent with monetary-policy repricing rather than a fresh long-end-led shock.

The analysis also considers France as an important exception within Europe, where fiscal and political risk can cause sovereign spreads to widen even if the broader European rate environment becomes more supportive.

The result is a clear macro divergence:

Europe increasingly offers a softer rates outlook as growth weakens and core inflation cools, while the United States continues to carry the greater higher-for-longer risk.

The video below walks through the principal drivers, the recent evolution of the yield curve and the key indicators we are monitoring over the coming weeks.