Central banks like the ECB have a single mandate for price stability, forcing them to hike rates in response to oil-driven inflation. The US Fed, with a dual mandate including employment, has historical precedent for "looking through" these temporary shocks, creating significant policy divergence between major economies.

A spike in oil prices could keep CPI inflation above 3%. In this environment, the Fed cannot cut rates to support a weakening economy, as doing so would spook bond traders, risk higher long-term rates, and make financial conditions even tighter, effectively taking them 'off the table.'

Historical precedent is unequivocal: central banks do not cut interest rates in response to an oil shock. Despite the negative growth impact, their primary concern is preventing the initial price spike from embedding into long-term inflation expectations. Market hopes for easing are contrary to all historical data.

Despite the economic risks from higher oil prices, the Federal Reserve is unlikely to cut interest rates. The central bank is firmly focused on high pre-existing inflation and rising inflation expectations, and geopolitical uncertainty will likely cause them to hold policy steady rather than provide stimulus.

The Federal Reserve focuses on growth risks from an oil shock as the US services-based economy sees less impact on core inflation. In contrast, the European Central Bank is more likely to raise rates, prioritizing inflation control due to faster price pass-through in the euro area.

Despite the Federal Reserve signaling rate hikes due to high inflation forecasts, Morgan Stanley's economists predict lower inflation for the year. This contrarian view is based on the recent significant drop in energy prices, which reduces a core inflationary pressure and may lead the Fed to remain on hold.

The key difference from the 2022 Russia-Ukraine shock is the macroeconomic starting point. Inflation was already at 6% then, versus a much lower level now. Interest rates were at rock-bottom levels, whereas now they are neutral to restrictive, giving central banks more of a buffer before needing to react aggressively.

Despite inflationary pressures from an oil price shock, the US Federal Reserve is expected to maintain an easing bias. The rationale is that high energy prices will ultimately destroy consumer demand and weaken hiring, making rate cuts to support the economy more likely than hikes.

An oil supply shock initially appears hawkishly inflationary, prompting central banks to hold or raise rates. However, once prices cross a critical threshold (e.g., >$100/barrel), it triggers severe demand destruction and recession, forcing a rapid policy reversal towards aggressive rate cuts.