GBPUSD Hinges on Central Banks' Relative Policy Tightening

The upcoming decisions by the Federal Reserve and the Bank of England on interest rates are expected to have a significant impact on the GBPUSD exchange rate. With both central banks operating in similar policy territory, the yield gap that usually influences the pair has become less decisive.

The US and UK economies are facing different inflation challenges, which will be reflected in their respective reaction functions. The Fed is watching whether inflation is cooling broadly or only at the headline level, while the Bank of England is focused on services inflation and wage growth.

A hawkish Fed with a softer BoE could widen the implied gap in favor of the dollar, while a softer Fed with a hawkish BoE would tilt the balance toward sterling. The pair's movement will depend on which reaction function tightens relative to the other.