European Central Bank faces 3-year-high inflation at 3.8%

The European Central Bank (ECB) faces a difficult monetary policy environment as Eurozone inflation reached 3.8% in September, its highest level in three years and almost twice the central bank's 2% target. The renewed acceleration in consumer prices, driven primarily by the energy shock linked to the Middle East conflict, raises expectations of further interest rate increases despite growing concerns about economic growth and financial stability.

At its October meeting, the ECB unanimously decided to leave its three key interest rates unchanged, keeping the deposit facility rate at 2.5%. However, ECB President Christine Lagarde confirmed that policymakers discussed raising rates, suggesting that another increase remains possible at the December meeting.

The decision reflects a growing dilemma: tightening monetary policy could help contain inflation but risks further weakening an economy already facing higher energy costs and increasingly restrictive financing conditions.

Energy shock pushes Eurozone inflation further above target

Eurozone inflation as measured by the Harmonized Index of Consumer Prices (HICP) accelerated to 3.8% YoY in September from 3.2% in August, with energy inflation reaching 18.9%, up from 14.3%. The surge in Oil and Natural Gas prices is putting renewed pressure on households and businesses, threatening to prolong the inflationary shock.

The ECB's latest Survey of Professional Forecasters reinforces these concerns. Inflation expectations for this year have been revised upwards to 3%, while the 2027 forecast was raised to 2.6%, compared with previous estimates of 2.7% and 2.2%, respectively. However, longer-term expectations remain anchored at 2%, suggesting that investors and economists continue to believe the ECB can eventually restore price stability.

The central bank's main concern is whether higher energy prices will spread to other sectors through increased production costs, consumer prices and wage demands. For now, evidence of such second-round effects remains limited. Inflation excluding energy stands at 2.3%, while the ECB's wage tracker projects negotiated wage growth of between 2.5% and 2.8% for the remainder of the year.

Nevertheless, ECB Governing Council member and Bank of Italy Governor Fabio Panetta warned that additional tightening could become necessary: "With inflation set to remain above target for an extended period and risks skewed to the upside, further increases in the policy rates could prove necessary," Panetta said, according to Reuters.

December rate hike looks increasingly likely, but how far can the ECB go?

Despite October's pause, several financial institutions anticipate another 25-basis-point interest rate increase in December, which would bring the deposit rate to 2.75%. Analysts at Danske Bank expect this move to mark the end of the tightening cycle, arguing that the absence of significant wage pressures and relatively stable underlying inflation reduce the need for additional increases in 2027.

MUFG Economist Lee Hardman also expects a December hike but highlights the complications created by rising European bond yields: "We still expect another hike by the end of this year in December."

However, higher borrowing costs are already tightening financial conditions independently of ECB decisions, potentially reducing the need for aggressive monetary action. Commerzbank Analyst Norman Liebke believes the outlook beyond December will depend heavily on whether the energy shock becomes more persistent: "As things stand, the ECB will probably have to revise its Oil and Gas price assumptions from the September projections higher in December. The key question, however, is whether the energy-price shock also feeds through to underlying inflation."

This distinction is critical. If inflation remains concentrated in energy, the ECB could limit its tightening cycle. Conversely, persistent increases in underlying inflation or wages could force policymakers to consider further action.

French bond market tensions threaten to complicate monetary policy

The ECB's challenge extends beyond inflation. Rising sovereign bond yields, particularly in France, are increasing financing costs across the Eurozone. The spread between French and German 10-year government bond yields has widened to approximately 165 basis points, reflecting concerns about France's fiscal position and political uncertainty.

Higher sovereign borrowing costs can spread through the financial system, raising lending rates for businesses and households and restricting investment. According to estimates reported by Reuters, the recent increase in bond yields could reduce cumulative Eurozone economic growth by around 1 percentage point and inflation by approximately 0.9 percentage points over 2027-2028, compared with the ECB's September projections.

This creates an unusual situation in which financial markets are effectively tightening monetary conditions before the central bank takes additional action. The economic outlook remains fragile. Germany's preliminary Gross Domestic Product (GDP) expanded by 0.2% QoQ in the third quarter, exceeding expectations of 0.1% but slowing from 0.3% in the previous quarter. Meanwhile, France's economy contracted by 0.1% QoQ, following stagnation in the second quarter and falling short of expectations for 0.1% growth, highlighting the fragile economic outlook across the Eurozone.

The ECB must therefore balance the risk of persistent inflation against the possibility that excessive tightening could further undermine economic activity.

Lagarde's early departure adds another layer of uncertainty

The monetary policy outlook is further complicated by Christine Lagarde's announcement that she will step down as ECB President on February 7, 2027, approximately nine months before her mandate expires. Her departure comes at a sensitive moment, with inflation well above target and European sovereign debt markets under pressure.

Former central bankers Klaas Knot and Pablo Hernández de Cos are considered potential successors, although their monetary policy approaches differ. 

Ebury Head of Market Strategy Matthew Ryan warns that a prolonged leadership transition could create additional uncertainty for financial markets: "The impact of a new president on ECB rates should be minimal, though a drawn-out succession could inject volatility into markets at an already fragile moment, so the sooner a successor is named, the better."

Nevertheless, the ECB's collective decision-making structure should limit the immediate impact of the leadership change on monetary policy.

Looking ahead, the next Eurozone inflation releases, wage developments and energy prices will be decisive in determining whether the ECB raises rates in December and how long borrowing costs remain elevated.

With inflation at a three-year high and financial conditions already tightening, the ECB faces a delicate balancing act between restoring price stability and avoiding further damage to the European economy.