Fed's Inflation Makeover: Warsh's 'Trimmed Mean' Could Backfire, Force Rate Hike

**The Fed's inflation math might be getting a rewrite.** At his Senate hearing, Fed chair nominee Kevin Warsh floated a new idea: recalculating inflation using a 'trimmed mean.' Simply put, this method strips out the most extreme price increases and decreases, focusing only on the middle range.  On the surface, it's a technical tweak that could make inflation appear more 'moderate.' But Bank of America economist Baff quickly pointed out the catch: this move could backfire. By excluding volatile energy and food prices, the new calculation might indirectly push policy rates higher in less obvious ways. **Warsh's Play: Slimming Down Inflation** The Fed has long focused on core PCE—which already excludes food and energy. Warsh thinks that's not enough; he wants to cut out 'one-off shocks' too, like geopolitical events or sudden beef price spikes. Under his formula, the 12-month inflation average for February would drop to 2.3%, with a median of 2.8%. Compared to the current core PCE of 3%, the numbers suddenly look much better. No wonder Warsh called current inflation trends 'quite favorable' at the hearing. But here's where it gets tricky. **Bank of America's Warning: The Trim Could Bite Back** Baff notes that after trimming extremes, the remaining data basket changes. Energy and food price swings, though excluded, could still influence other categories, indirectly lifting the trimmed mean. Think of it like pruning a tree's longest branches—the shorter ones next to them suddenly stand out more. We've seen this happen in the data. Bank of America's tracked trimmed median inflation actually ran *above* core PCE in 2019 and 2020. Had the Fed used this method back then, it might have been forced to hike rates sooner and harder. If Warsh takes the helm and adopts his preferred metric, he'll have to live with its results—even if they come in higher than core PCE. To maintain central bank credibility, he can't just ignore the numbers. **What Crypto Watchers Should Focus On: The Hidden Rate Path** For Bitcoin traders, the key isn't the inflation math itself, but how it distorts rate expectations. Fed rate decisions might seem driven by jobs and inflation data, but underneath, it's a game of political and algorithmic maneuvering. Warsh's 'trimmed mean' essentially creates wiggle room—better-looking data means more justification for rate cuts. But Bank of America's analysis suggests that room could shrink fast. If trimmed inflation readings unexpectedly spike, Warsh would face a choice: admit the formula doesn't work, or hike rates anyway. The latter looks more likely. Trump wants low rates, and Warsh wants a new calculation to help deliver them. But if the formula backfires, the rate path could turn more hawkish than markets currently expect. **What Comes Next** Whether Warsh gets confirmed remains uncertain, but this thread is worth watching closely. Short-term, markets will keep riding the 'cooling inflation' narrative, potentially giving risk assets a boost. But a medium-term risk is brewing: if the trimmed mean method gets adopted, 2024-2025 inflation readings could prove more stubborn than anticipated. The Fed's credibility is a one-way street. Once it picks a new metric, it has to stick with it—even if the data turns ugly. For crypto, this adds another thorn to the macro story. The 'higher for longer' rates narrative might not fade with a formula change; it could actually get reinforced. **Bottom Line** Algorithms are written by humans, but data doesn't lie. Warsh wants to give inflation a makeover, but Bank of America's warning is clear: when the filter cracks, the truth might look even worse.