Inflation Transmission Channel

Category: Framework
Source: Chatham House — Michael Klein (Senior Research Fellow, Global Economy and Finance Programme), May 14, 2026

Description

The macro-inflation framework for the Hormuz crisis. The key insight: the inflation shock is "only just beginning" — the April data is just the first wave. Energy price increases don't stay in energy markets; they feed through into broader inflation via second-round effects (wage demands, services prices, inflation expectations).

Key Mechanism

  1. Energy as inflation driver — "The price of energy is a central variable in shaping overall inflation."
  2. Second-round effects — Energy price increases feed through into wage demands, services prices, and inflation expectations. This is what central bankers fear most.
  3. Policy bind — Rate hikes can't fix supply-side energy inflation, but central bankers must prevent second-round effects. They can't make the oil price go down.

Historical Pattern

  • 1973 and 1979 oil shocks pushed US inflation toward 15%
  • Paul Volcker raised rates to 20% to tame it
  • The 2023-2025 inflation moderation was "inconceivable without a sustained collapse in global energy price inflation"
  • Rising energy inflation drove the 2016-2018 and 2021-2022 inflation surges

Current Data (April 2026)

Country April 2026 CPI YoY Notes
United States 3.8% +0.6% in a single month — highest since May 2023
Philippines 7.2% Up from 4.1% in March
Turkey 32.4% Up from 30.9% in March

IEA "Red Zone" Warning

Dr Fatih Birol (IEA Executive Director), speaking at Chatham House, warned that Hormuz closures and rising summer demand could push oil markets into a "red zone" by July/August.

Significance

Provides the macro-economic context that complements the supply-side analysis from banks and oil companies. The central banker bind is crucial: they can't fix supply-side inflation with rate hikes, but they must prevent second-round effects. This creates a policy dilemma that could amplify the economic damage of the Hormuz crisis.

Relationship to Other Concepts

  • Complements "Demand Destruction Dual Risk" (Goldman Sachs) — Goldman shows demand destruction at the consumer level; Chatham House shows the macro inflation transmission
  • The Birol "red zone" warning (July/August) aligns with JPMorgan's operational stress timeline (June) and Morgan Stanley's buffer exhaustion window (late June/July)
  • The inflation framework explains why demand destruction may be more persistent than price-only models suggest — consumers face both higher prices AND broader cost-of-living pressures