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Bank of England's Greene says central banks can't assume Iran war impact will be temporary

Published by Global Banking & Finance Review

Posted on May 18, 2026

2 min read

· Last updated: May 18, 2026

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Bank of England Warns Iran War May Fuel Longer-term Inflation Risks

Central Bank Perspectives on Inflation and Interest Rates

Bank of England's Stance on Supply Shocks

May 18 (Reuters) - Bank of England interest rate-setter Megan Greene said central banks should not assume that the Iran war's inflationary hit will be temporary and that policymakers cannot wait to see all the evidence of the impact before taking a stance on rates.

"This is our third negative supply shock in five years. We do have to worry about wage and price setting," Greene said at a Financial Times event on Monday.

Reevaluating Traditional Approaches

"Traditionally you look through negative supply shocks, but I think when you have successive ones, actually that's outdated folklore and we shouldn't be looking through them anymore."

Monetary Policy Committee Decisions

Greene voted with the majority of her colleagues on the BoE's Monetary Policy Committee to keep rates on hold in April but said at the time that an increase might be needed in upcoming meetings.

Potential for Future Rate Increases

In her comments on Monday, Greene said the second-round effects from the energy price surge - such as workers demanding more pay or companies raising their selling prices on a broad basis - would take a year to become apparent.

Other MPC Members' Views

Catherine Mann's Wait-and-See Approach

Separately, another MPC member Catherine Mann said she was awaiting data - including official April inflation figures due on Wednesday as well as more forward-looking indicators - to help her assess the upward risks to inflation.

Political Uncertainty and Inflation

However, uncertainty over the future of British Prime Minister Keir Starmer could exert pressure on inflation in the opposite direction, Mann told Reuters on the sidelines of a conference in Budapest organised by Hungary's central bank.

"Instability of a variety of types is deleterious to decision-making by firms and households, and so it does tend to be associated with ... 'let's wait and see', and so that's not good for growth," she said.

Market Expectations

Investors are pricing at least two BoE rate hikes before the end of the year but most economists polled by Reuters last week forecast no change in borrowing costs.

Reporting Credits

(Reporting by William Schomberg in London and Gergely Szakacs in Budapest; editing by William James and David Milliken)

Key Takeaways

  • Successive supply shocks now challenge the old ‘look through’ doctrine—Greene argues policymakers must respond, not ignore.
  • Greene notes second‑round inflation effects (wage pressures, broader price rises) may surface over a year’s time.
  • Other MPC member Catherine Mann is awaiting April inflation data and forward indicators, while political instability could dampen growth, complicating rate decisions.

Frequently Asked Questions

What did Megan Greene say about the Iran war's impact on inflation?
Megan Greene warned that central banks should not assume the Iran war's inflationary impact will be temporary and emphasized the need for proactive policy responses.
Why might traditional approaches to supply shocks be outdated?
Greene argued that successive negative supply shocks render traditional approaches outdated, suggesting that such shocks should not simply be 'looked through' by policymakers.
How long could second-round effects from the energy price surge take to appear?
Greene stated that second-round effects, like higher wages and prices, could take about a year to become clear.
What factors is Catherine Mann monitoring to assess inflation risks?
Catherine Mann is awaiting official April inflation data and forward-looking indicators to evaluate the upward risks to inflation.
What might offset inflationary pressure according to the article?
Uncertainty over Prime Minister Keir Starmer's future could create instability, which may exert downward pressure on inflation by reducing firm and household decision-making.

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