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.'

Contrary to typical FX reactions, hawkish ECB policy amid an energy shock would be profoundly negative for growth. Any rate hikes would compound the economic damage from higher energy prices, making the Euro more vulnerable.

Markets pricing in ECB rate hikes after an energy shock is flawed. Higher energy prices are a negative growth impulse for Europe, hurting terms of trade and consumer spending. Hiking rates would only worsen the downturn, making European cyclicals and the Euro vulnerable regardless of policy.

The Federal Reserve cannot print oil. Therefore, during a supply-side commodity crisis, any major policy intervention will originate from fiscal authorities (e.g., the White House), not from monetary policy, which would only exacerbate inflation.

While initial energy price spikes boost short-term inflation expectations, a sustained shock eventually hurts economic growth. This growth concern acts as a natural ceiling on long-term inflation expectations (break-evens), as markets anticipate an economic slowdown, preventing them from rising indefinitely.

The long end of the bond curve has moved up simply to reflect tighter short-term policy, but has not seen a meaningful expansion of risk premiums. This suggests the market is complacent, underestimating the risk that this oil shock could extend the period of above-target inflation for years, similar to the post-2022 experience.

Investors often rush to price in the disinflationary outcome of an oil shock (demand destruction). However, the causal chain is fixed: prices rise first, hitting real spending. Only much later does this weaken the labor market enough to reduce overall inflation, a process that can take 9-12 months to play out.

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.

The European Central Bank is expected to lean hawkish in response to the conflict's impact on energy prices. Historical precedent from similar crises suggests their internal analysis frames such events as an inflationary threat first and a growth threat second, meaning they are unlikely to counter market expectations for rate hikes.