Inflation Regime Shift
Consumer-price inflation across six economies, 2000–latest, as a ridgeline
- Unit
- CPI inflation (annual %)
- Frequency
- Annual
- Coverage
- 2000–2025 (United States to 2024)
- Evidence Quality
- High
Six inflation ridges from 2000 on — advanced economies flat then spiking in 2022, Brazil and India riding higher, noisier baselines throughout.
Ridgeline chart. Annual CPI inflation (%) · one ridge per economy, window 2000–latest. It covers United States, Germany, Japan, United Kingdom, Brazil and India.
Plotted window starts in 2000. Brazil and India carry 1990s hyper-inflation readings (Brazil ~2076% in 1994) that would flatten every other ridge; those years are held in the underlying data but not drawn. Each ridge is scaled to a shared vertical unit, so heights are comparable across economies; the dashed rule marks 2022.
Question
When the 2021–2023 inflation surge hit, did every economy spike together — or did each carry its own regime into the shock?
Evidence
Each ridge is one economy's annual CPI inflation from 2000 on. The advanced economies sit low and flat for two decades, then throw a single sharp 2022 crest: the United States to 8.0%, the United Kingdom to 7.9%, Germany to 6.9%. Japan barely moves, peaking at 3.3% only in 2023. Brazil and India ride higher baselines the whole way, so their 2022 crests rise from an already-elevated ridge rather than off the floor.
Observation
Read how each distribution's peak and spread shift down the stack.
Read the SHAPE of each ridge, not its height against a y-axis — there is none. A ridge that is flat then spikes (US, UK, Germany) had a stable regime broken by one shock; a ridge that is bumpy throughout (Brazil, India) never had the same quiet.
Assessment
- The surge was a regime break, not a trend: the US ridge is flat near 1–3% for twenty years, jumps to 8.0% in 2022, and is most of the way back down by 2024 (2.9%) — a spike, not a new plateau.
- Japan is the outlier that barely surged — its ridge sits lowest, dipping below zero repeatedly (outright deflation, e.g. −0.9% in 2002) and cresting at just 3.3% in 2023, the year everyone else was already falling.
- Emerging inflation was structurally higher but is now converging down: India's latest reading (2.4% in 2025) is below the US 2022 peak, and Brazil's latest (5.0% in 2025) sits closer to the advanced-economy band than to its own 2003 window-high of 14.7%.
Advantage
- How do these same economies compare across debt, growth and balances at once?No Country Is Average
- How hard did central banks push rates to break the surge?The Synchronized Tightening
- Did the inflation shock move external balances too?Surplus Nations, Deficit Nations