Tag: VARs

Has UK food inflation been under the weather?

India Rimmer, Hannah Copeland and Boromeus Wanengkirtyo

Global extreme weather events may feel far away, but they leave behind a trail of higher prices in our shopping baskets. As outlined in past Monetary Policy Reports, droughts, flooding and heatwaves occurring overseas often impact UK food inflation, which averaged 4.2% in 2025. But how much of the rise in food inflation last year can we blame on the weather? By constructing a new proxy for global weather shocks, we find that they increase UK food prices with a peak impact after one year. In the latest period, our model suggests that weather shocks contributed 0.8 percentage points to food inflation at peak in May 2025. Weather continues to matter for inflation amidst the current El Niño phenomenon.

Continue reading “Has UK food inflation been under the weather?” →

What happens to inflation when we put a price on carbon?

Hannah Copeland, Lennart Brandt, Natalie Burr and Boromeus Wanengkirtyo

Emissions Trading Schemes (ETS) are an increasingly popular market-based policy to impose a price on carbon emissions (previously costless to the emitter) (World Bank Group (2025), DESNZ (2025)). With carbon prices expected to increase steadily, and sectoral coverage broadening, these schemes have gained the attention of monetary policy makers (Breeden (2025), Mann (2023)). But what are the implications for inflation? By constructing a new tool (a high-frequency identified ‘instrument’) to measure the impact of supply shocks in the UK carbon market, we document that a tighter carbon pricing regime temporarily increases energy prices and inflation, and decreases output. We find that this shock transmits through multiple energy-related commodity prices, including oil and gas, compounding cost-push pressures arising from the energy sector.

Continue reading “What happens to inflation when we put a price on carbon?” →