Warsh Fails the Oil-Shock Test An oil shock is not a monetary-policy failure. It is a tax imposed by producers abroad, a supply disruption, or both. The Federal Reserve cannot drill another barrel, reopen a shipping lane, or make gasoline cheaper by raising the cost of a mortgage. Yet Kevin Warsh’s response to the current energy-price surge suggests that he would do exactly what the Fed has too often done: hike into a supply shock, sacrifice the interest-rate-sensitive economy, and call the resulting contraction a victory over inflation. That is a dangerous misreading of both the facts and history. In their landmark 1997 paper, Ben Bernanke, Mark Gertler, and Mark Watson found that much of the economic damage following postwar oil-price shocks stemmed not from oil itself, but from the Fed’s systematic response higher interest rates. Oil was the trigger. Monetary tightening was the amplifier. Their work does not say that central banks should disregard inflation. It says they must distinguish an inflationary regime from a one-time jump in a key relative price. That distinction is central today. A rise in energy costs can lift headline inflation and strain household budgets without producing a self-sustaining inflation process. The relevant questions are whether expectations are becoming unanchored, whether wage growth is accelerating in response, and whether price increases are spreading broadly through core services and goods. If expectations remain anchored and there is no persuasive evidence of durable second- or third-round effects, a rate hike would be an act of economic vandalism. It would not lower the price of oil. It would simply add a credit shock to an energy shock. Housing, commercial real estate, construction, autos, durable goods, and business investment have already borne the brunt of restrictive policy. These are not abstract lines on a Bloomberg terminal. They are the sectors where rate hikes become layoffs, cancelled projects, unaffordable homes, and weaker capital formation. Warsh is as bad as Powell: both mistake a rigid response to headline inflation for credibility. Warsh reacted to Wall St prediction market. Warsh is making a policy decision based on what geopolitical events could be. Again classic mission creep. Wall Street may cheer, of course. The Bloomberg bros crowd always admires the theater of a central banker promising resolve. But that is a Hall of Mirrors markets congratulating themselves for embracing a policy that may validate a fashionable narrative while weakening the underlying economy. The test of a Fed leader is not whether he can raise rates. Anyone can raise rates. The test is whether he can change the reaction function when the facts demand it: recognize a supply shock, protect credibility without chasing oil prices, and avoid turning transitory inflation into a recession. Warsh failed that test. Investors should take note. brookings.edu/wp-content/upl…