The Mechanism
How inflation entrenches — the last mile and the wage-price loop
Headline inflation falls easily when energy and goods prices normalize, but the “last mile” from ~3% to 2% runs through sticky core services — shelter, wages, insurance — that move slowly and reflect expectations. If households and firms come to expect 3–4% inflation, they bargain for it in wages and set it in prices, and the expectation becomes self-fulfilling. Stagflation is the dangerous variant: a supply shock (oil, tariffs, war) pushes prices up while growth slows, leaving the central bank unable to ease without reigniting inflation or tighten without deepening the downturn. The signal is core and services inflation, and expectations, refusing to converge to target even as headline cools.
The Debate
Bull / Consensus
Inflation has fallen most of the way to target without a recession — the immaculate disinflation. Supply chains normalized, shelter inflation is rolling over with a lag, and the labor market is rebalancing without mass layoffs. The Fed can cut into a soft landing. Expectations remain anchored; 2% is in reach.
Bear / Contrarian
Core services and wages have stalled around 3% and tariffs are a fresh goods-price shock. Every disinflation leg so far has been the easy part; the last mile is where 1966–74 went wrong. Cut too soon and inflation reaccelerates; stay tight as growth fades and you get stagflation. Anchored expectations are an assumption, not a guarantee.
What to Watch
- Core PCE and core CPI — the last-mile gauges the Fed actually targets
- Supercore (services ex-housing) — the stickiest, wage-driven component
- 5y5y forward breakeven and Michigan / NY Fed expectations — de-anchoring risk
- Average hourly earnings and the ECI — the wage-price feedback loop
- Tariff pass-through into core goods prices
- Shelter / OER disinflation pace vs. market rents
- Productivity growth — the swing factor between soft landing and stagflation
Institutional Commentary
Federal Reserve
Holds the 2% target; data-dependent on the last mile and wary of cutting prematurely.
IMF (World Economic Outlook)
Flags sticky services inflation and supply-shock risk to the disinflation path.
Bank for International Settlements
Warns the final descent to target is the hardest and most prone to reversal.
Lawrence Summers
Persistent concern that inflation and expectations are not fully tamed.
Mohamed El-Erian
The last mile is the hardest; risk the Fed declares victory too early.
BlackRock Investment Institute
Sees a structurally higher inflation regime, not a return to the pre-2020 normal.
Key Voices
Bull / Consensus
Jan Hatzius
Goldman Sachs Chief Economist
“Immaculate disinflation is real — inflation returns to target without a recession as supply normalizes”
Paul Krugman
CUNY / Columnist
“Team Transitory was mostly right — the inflation spike was supply-driven and is unwinding as expected”
Bear / Contrarian
Lawrence Summers
Harvard / Former Treasury Secretary
“Inflation and expectations are not fully tamed — the last mile is where premature confidence gets punished”
Mohamed El-Erian
Allianz / Queens’ College Cambridge
“The last mile is the hardest — the risk is the Fed declares victory too early and has to reverse”
Jamie Dimon
JPMorgan Chase CEO
“Markets are underpricing stagflation risk — sticky inflation alongside slowing growth is the scenario few are positioned for”
Narrative Timeline
Market Positioning
Historical Analogs
Great Inflation 1966–82
Premature easing and back-to-back supply shocks let inflation entrench; it took Volcker’s recession to break it.
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1994 Soft Landing
Greenspan tightened pre-emptively and cooled the economy without a recession — the bull-case template.
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2008 Commodity Spike
Oil to $147 and global food riots, then a demand collapse — a supply-shock inflation that reversed hard.
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