NextFin News - The era of falling interest rates may be ending sooner than investors hoped. With Brent crude back above $100 a barrel and inflation re-accelerating across the Atlantic, central banks are no longer debating when to cut - they are weighing whether to raise borrowing costs again, and one of them is all but certain to do so this week.
The European Central Bank was set to decide on rates this week, with markets pricing a 98.9% probability of a quarter-point increase that would lift its key rate to 2.5%. The Federal Reserve follows on September 15-16, where the odds of a hike have climbed to 61% after a stronger-than-expected U.S. jobs report. Only the Bank of England, despite UK inflation already at 2.9% and climbing, is broadly expected to hold at 3.75% - for now. The question is no longer whether the disinflation trade of 2024-25 has broken. It is whether the world is entering a second, more painful phase of the inflation war, in which energy shocks force central banks to choose between price stability and growth.
The Shock That Restarted the Inflation War
The trigger is familiar, and that is precisely the problem. Escalating conflict in the Middle East has disrupted oil flows through the Strait of Hormuz, a chokepoint carrying roughly one-fifth of global oil supply. Brent crude futures breached $100 a barrel on September 9 for the first time since late July, and the physical dated-Brent benchmark has traded above that threshold since September 3. European diesel futures sit near $199 a barrel; gasoline's premium to crude has neared record levels above $60.
This is not abstract. Energy is the one input every household and business must buy, and when it spikes, it lifts the entire price chain - from heating bills to food transport. UK inflation accelerated to 2.9% in July, up from 2.6% in June, as the energy regulator's 13% cap increase fed through to household bills in the largest gas-price jump since October 2022. Euro-zone headline inflation climbed to 3.3% in August, the highest since September 2024, with energy inflation alone running at 14.3%. In both cases, the path back toward the 2% target - which had looked achievable as recently as February, before the war widened - has been set back by months.
The transmission mechanism is direct and unforgiving: a supply shock raises the price of a necessity; headline inflation rises mechanically; if the shock persists, it bleeds into inflation expectations, wage demands, and services pricing - the "second-round effects" that turn a temporary spike into entrenched inflation. Central banks' entire job is to stop that second round before it starts. The uncomfortable truth is that the tool for stopping it - higher interest rates - also slows the economy, and this time the economy is far less able to absorb the blow than it was in 2022.
Three Central Banks, Three Different Answers
The divergence among the three major central banks tells the real story. The ECB has the least room to maneuver. The euro zone is a net energy importer, inflation is above 3%, and the bank's own staff lifted their 2026 inflation forecast to 2.6% from 1.9%. President Christine Lagarde has warned that inflation will remain "well above target" until the first half of 2027. With market pricing at 98.9% for a hike, the bank was effectively committed - the only question is whether one quarter-point is enough.
The Federal Reserve faces a different calculus. The United States is a net oil producer and is less exposed to Hormuz disruptions, which is why markets priced no hikes for most of this year. But the labor market refuses to soften: employers added 162,000 jobs in August, ahead of expectations, and unemployment held at 4.1%. Core PCE - the Fed's preferred inflation gauge - is stuck at 3.3% year-on-year, well above the 2% target, and annual inflation has run above target for 65 consecutive months. Nine of the Fed's 18 policymakers favored at least one rate hike this year at the June meeting, and Fed funds futures now put the odds of a September increase at 61%, up from 52% before the jobs report. Citigroup, a longstanding dove, abandoned its call for cuts in late 2026 and now expects the next reduction only in June 2027.
The Bank of England sits in the middle - and may be making a mistake. UK inflation is already at 2.9% and the central projection has it peaking at 3.2% in the fourth quarter. Three of the nine Monetary Policy Committee members - Greene, Mann and Pill - already voted in July for an immediate quarter-point rise to 4%. Yet the consensus expects the Bank to hold at 3.75% on September 18, betting that the shock will not produce second-round effects. Oxford Economics argues there is "no sign" of workers demanding compensating wage rises or businesses passing on costs. The Bank itself says it "stands ready to act as necessary" - language that preserves flexibility but also admits the risk is live.
"The ECB faces a dilemma: a trade-off between higher interest rates and economic cost. Higher borrowing costs will continue to squeeze heavily indebted households, weaken housing markets and make investment more expensive for businesses." - Joe Nellis, head of economic research at MHA
Cyclical Shock, Structural Consequence
Here is the judgment that matters: the inflation impulse itself is cyclical, but the policy response could make the outcome structural. A war-driven energy shock is, by definition, mean-reverting - if the conflict de-escalates and Hormuz flows resume, oil prices fall back, and headline inflation drops almost as mechanically as it rose. Goldman Sachs, assuming a longer disruption, still only forecasts Brent averaging $71 a barrel in the fourth quarter - far below today's spot price. The shock contains the seeds of its own reversal.
But that is not how this ends for interest rates. Three reasons the terminal level of rates is likely to settle structurally higher than the 2021-24 path, even after oil normalizes. First, central banks have learned the cost of "looking through" supply shocks. The ECB hiked for the first time since 2023 in June; the Fed has held at 3.50%-3.75% for five straight meetings after cutting in December. Policymakers are now biased toward acting early, not late, and that bias outlives the shock.
Second, the evidence that second-round effects are contained is real but fragile. Euro-zone core inflation - excluding energy, food, alcohol and tobacco - actually dipped to 2.4% in August. UK wage pressure is muted because the labor market is far weaker than in 2022: hiring is below average, vacancies have fallen, and workers have less leverage. As Oxford Economics' Alexander Harvey put it, the contrast with the post-Covid rebound is "stark." That is the case for patience.
Third, and most important, the asymmetry of error has flipped. In 2021, central banks feared tightening too soon and killing a fragile recovery. Today they fear the opposite: tightening too late and letting inflation expectations unanchor. When the cost of being wrong is a second Volcker-style squeeze, the rational choice is to err on the side of restraint - which means rates stay higher for longer even after the energy shock fades. KPMG's Yael Selfin notes that UK consumers are "somewhat scarred" by the last inflation episode and have already changed how they spend; that behavioral shift reduces the need for extreme rates, but it also means the economy adjusts to a higher-rate plateau rather than forcing rates back to zero.
The market has not fully priced this. A 61% chance of a Fed hike and a near-certain ECB move reflect the immediate shock. They do not reflect the higher probability that the neutral rate itself has risen - that the destination, not just the journey, has moved up.
The Counter-Thesis: This Is Overdone
The strongest case against hiking is straightforward and deserves its weight. Raising rates into an energy supply shock does nothing to produce more oil. It cannot reopen the Strait of Hormuz, refill storage, or lower the price at the pump - it can only crush demand. If second-round effects are genuinely absent, as the core-inflation data suggests, then a hike is policy error: it deepens the growth slowdown, raises debt-servicing costs for governments already running large deficits, and risks a recession that would bring inflation down anyway, at far higher social cost.
This view has institutional backing. Oxford Economics expects the Fed to hold rates unchanged in September, and its UK team sees "breathing space" for the Bank of England. The argument is that headline inflation driven by a commodity spike is self-limiting - high prices destroy the demand that created them. History offers support: after the 2022 energy crisis, inflation fell without central banks needing to hike into the downturn; they held, then cut.
The rebuttal is that 2026 is not 2022's aftermath - it is 2022's return. In 2022, rates started from near zero with inflation expectations still anchored. Today, after a full tightening cycle that was reversed into cuts, credibility is thinner and expectations are one shock away from drifting. The Fed's own minutes show a "majority" already considering a hike appropriate if inflation persists above 2%. Persistence is the operative word: 65 straight months above target is not a blip, it is a regime. Waiting for perfect evidence of second-round effects means acting only after they have arrived - which is the mistake the 2021-22 cycle taught policymakers never to repeat.
There is also a political dimension that cannot be ignored. The U.S. president has publicly pressed the Fed to cut, posting that the Fed Board "must get smart - BE PATRIOTS for a change." Newly appointed Fed Chair Kevin Warsh has remained tight-lipped on the rate path while repeatedly emphasizing that the central bank's focus should be on slowing price rises. A central bank seen as responsive to political pressure loses the very credibility that makes disinflation cheap. That dynamic pushes toward a hawkish surprise, not a dovish hold.
What Comes Next: Scenarios and Signals
The next two weeks will define the cycle. The ECB was expected to announce its decision on Wednesday. The Fed meets September 15-16, and its decision hinges on the August consumer-price report due September 12 - economists expect a 0.4% monthly rise, taking the annual rate to 3.4% - plus producer-price data. The Bank of England follows on September 18.
Base case: the ECB raises its rate by 25 basis points to 2.5% as expected; the Fed follows with a 25-basis-point move to 3.75%-4.00% if the price report prints at or above consensus; the Bank of England holds but shifts its guidance hawkish, with the three-member dissent becoming four or five. Rates plateau at this higher level through 2027, with cuts delayed until the energy shock clearly reverses.
Upside case for rates, downside for growth: the price report surprises hot, oil pushes toward $110, and the Fed delivers a hike while signaling more to come. Bond yields surge, equity multiples compress, and the disinflation narrative of 2025 is fully abandoned. This is the reflation-regime scenario.
Downside case for rates: the Middle East de-escalates, Hormuz flows resume, Brent falls back toward $80, and core inflation continues to cool. The Fed holds in September and reprices cuts into early 2027. The entire hike scare proves to have been a head-fake driven by a commodity spike that never reached the real economy.
The falsifying signal for the "rates are going up" thesis is specific: if core consumer prices print below 0.2% month-on-month for two consecutive months while oil falls below $85 a barrel, the case for tightening evaporates and the cyclical-shock view wins. Conversely, if core prices run at 0.4% or higher for two months alongside Brent above $105, the structural-higher-rate view is confirmed - and markets will have to price not one hike, but a sequence.
For borrowers, savers, and investors, the practical implication is asymmetry. Mortgage rates that fell on cut expectations have already reversed; UK households face energy bills at the highest level in three years heading into winter; euro-zone small businesses face a second blow from financing costs on top of the energy bill. Savers, meanwhile, may finally see the higher-for-longer environment deliver real positive returns - if inflation peaks before nominal rates do.
The bottom line: this is not 2022 replayed, and it is not a temporary blip either. The energy shock is cyclical and will fade; the policy response will not. Central banks have learned that the cost of looking through a supply shock is a lost decade of credibility, and they will pay that cost in slower growth rather than risk it. Interest rates are not just on the way up for one meeting - they are settling onto a higher plateau, and the market is only halfway to pricing that in.
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