Europe's economy faces a difficult challenge: inflation may become less predictable even when central banks successfully bring price increases under control.

An economic analysis published in June 2024 by economists Lucrezia Reichlin and Jeromin Zettelmeyer argues that the European Central Bank (ECB) needs a more flexible approach to managing future price shocks.

Their assessment highlights how disruptions to energy supplies, changes in global trade and structural economic shifts could make inflation more volatile, complicating decisions about interest rates.

Why Inflation Is Becoming Harder To Control

Central banks traditionally influence inflation by adjusting borrowing costs. Higher interest rates discourage spending and investment, helping reduce pressure on prices. Lower rates can encourage economic activity when demand weakens. However, this approach becomes more complicated when inflation originates from supply disruptions rather than excessive consumer spending.

A sudden increase in energy prices, for example, can raise inflation while simultaneously reducing households' purchasing power. Increasing interest rates too aggressively under these circumstances could weaken an economy already experiencing difficulties. The challenge is determining when intervention is necessary and when temporary price increases should be allowed to subside.

Supply Shocks Present New Risks

Europe has become increasingly familiar with disruptions affecting the availability and cost of essential goods. Energy shortages, transportation difficulties and changing production conditions can all influence consumer prices. Unlike demand-driven inflation, these shocks often create simultaneous problems for economic growth and price stability.

The researchers argue that future structural changes could make such disruptions more frequent. This means monetary policy may need to respond to a wider range of economic conditions rather than relying heavily on conventional inflation forecasts.

Why Inflation Expectations Matter

One important consideration is how businesses and households interpret rising prices. When people believe inflation will remain high, employees may demand larger wage increases while companies adjust prices in anticipation of future costs. These responses can make inflation more persistent, even after the original disruption disappears.

The ECB must therefore distinguish between temporary price changes and increases that threaten long-term inflation expectations. Clear communication can help the public understand why interest rates change and how the central bank intends to maintain price stability.

Government Spending Complicates Decisions

Monetary policy does not operate independently of government finances. European countries face growing spending demands alongside existing debt obligations. When public budgets are constrained, governments may have limited capacity to support economic activity during a downturn. This creates additional difficulties for the ECB, particularly if interest rates approach zero and conventional monetary stimulus becomes less effective.

Differences in national borrowing costs also complicate monetary policy across the eurozone. The researchers identify these financial divisions as an enduring vulnerability requiring broader institutional solutions.

Should The ECB Change Its Strategy?

The analysis suggests that greater flexibility could help the ECB respond more effectively to future supply shocks. Rather than treating every inflation increase identically, policymakers may need to consider its underlying causes, expected duration and wider economic consequences. Maintaining confidence in the ECB's 2% inflation target remains essential.

However, achieving that objective may require careful judgement about when higher interest rates would help and when they could cause unnecessary economic damage.

What This Means For Europe

For households, unpredictable inflation can make budgeting and long-term financial planning more difficult. Businesses face similar uncertainty when deciding whether to invest, hire employees or adjust prices. A monetary strategy capable of responding to changing economic conditions could help limit these disruptions.

The central message is that price stability remains crucial, but the tools used to achieve it must evolve.

As Europe confronts changing energy markets and global economic uncertainty, adapting monetary policy may become increasingly important for protecting growth and financial stability.