The global monetary policy cycle that synchronised in 2022 — when virtually every major central bank raised rates simultaneously to fight post-pandemic inflation — has fractured in 2027 into a complex divergence. Each of the four major central banks is at a different stage of the cycle, driven by different domestic inflation dynamics, different labour market conditions, and different structural factors. Understanding this divergence matters not just for understanding each country's inflation outlook, but for grasping the exchange rate, capital flow, and imported inflation consequences.

The Federal Reserve: patient cutting

The Fed has cut twice since September 2026 (25bp each), bringing the funds rate to 4.25%. With core PCE at 2.6% and falling, real rates are still around +1.6 pp — meaningfully restrictive. Fed Chair Powell has signalled a "meeting by meeting" approach, with the next cut contingent on continued progress in super-core services inflation. The Fed's patience reflects its 2021 "transitory" error: it is determined not to declare victory prematurely and then face a second inflation wave. Markets price two more cuts in 2027 (May and September), leaving the terminal rate around 3.75%.

The ECB: approaching the floor

The ECB cut its deposit rate to 2.5% in January 2027 and signalled a pause. Estimates of the euro area neutral rate cluster around 2.0–2.5%, meaning the ECB is at the lower bound of restriction. With euro area headline HICP at 2.3% and core at 2.6%, further cuts risk returning to below-target inflation — particularly given the deflation already visible in Finland and the Netherlands. The ECB's data dependency means it will watch Q1 2027 wages data closely before resuming cuts.

The Bank of England: sticky inflation trap

The BoE's situation is the most difficult of the four. Services inflation re-accelerated to 5.4% in January 2027, locking the MPC into a hold at 4.5% for now. The wage-services transmission remains active: public sector wage settlements of 4.5% are feeding into NHS, education, and local government services prices. The BoE faces a genuine dilemma — the economy is barely growing (Q3 2026 GDP: +0.1%), but cutting while services inflation is accelerating risks losing credibility. The February Monetary Policy Report will be crucial.

The Bank of Japan: a historic normalisation

Japan's monetary policy shift is the most historically significant of the four. After 25+ years of near-zero or negative rates, the BoJ raised its policy rate to 0.50% in January 2027 — its second hike since the historic July 2024 move. Japanese CPI is at 2.8% (see our Japan analysis), and — critically — underlying services inflation in Japan is finally positive for the first time in decades. The yen has strengthened 8% against the dollar since the first hike, reducing imported inflation for Japan but creating deflationary pressure for dollar-denominated commodity markets.

What divergence means for the rest of the world

Central bank divergence creates winners and losers through three channels: (1) exchange rates — yen and sterling movements redistribute inflation globally; (2) capital flows — higher-yielding currencies attract carry traders, affecting EM economies that borrowed in dollars; (3) commodity prices — a stronger yen and weaker dollar are generally supportive for commodity prices, which affects food and energy inflation worldwide. Our exchange rate pass-through term explains how currency movements transmit into domestic prices.