Inflation is reported as one number and experienced as many different ones, and the gap explains why the official figure so often feels wrong.
The basket problem
The reported figure weights price changes by average household spending patterns.
Which means it describes an average household that may resemble nobody in particular.
A household spending a large share on rent, energy and food experiences something quite different from one spending heavily on discretionary categories, when those categories move differently.
Statistical agencies in several countries now publish inflation estimates by income decile or household type, which show meaningful divergence.
Why lower-income households usually experience more
Because essentials — food, energy, housing, transport — occupy a larger share of their spending.
Those categories have generally risen faster than discretionary goods in recent inflationary periods.
Which means the burden is not evenly distributed even when everyone faces the same prices.
There is also a poverty premium in several markets — prepayment energy meters, weekly rather than annual insurance payment, and lack of access to bulk purchasing — which compounds it.
Shrinkflation
Package sizes reducing while prices hold.
Which is an effective price increase and is captured correctly in official statistics, since they measure price per unit quantity.
It is not captured in consumer perception, which anchors on the package price, and that is precisely why it is used.
Some jurisdictions have introduced unit pricing requirements to make comparison easier, with mixed enforcement.
Skimpflation
A related pattern where quality or service declines rather than quantity.
Substituting cheaper ingredients, reducing staffing, removing included services.
Harder to measure and largely invisible in price statistics, which adjust for quality only where the change is identifiable and quantifiable.
Which means measured inflation probably understates the deterioration in what money buys during these periods.
Wages and the lag
Wages adjust more slowly than prices, since they are typically renegotiated annually at most.
Which means real incomes fall during an inflationary period even if they eventually catch up.
And they frequently do not catch up fully, since the catch-up depends on labour market conditions rather than on any mechanism.
Households with fixed incomes — pensions without full indexation, benefits with lagged uprating — face the sharpest version of this.
Debt
Inflation reduces the real value of fixed-rate debt, which benefits borrowers.
Which is offset if interest rates rise and the debt is variable-rate, since the payment increases immediately.
Fixed-rate mortgage holders are insulated until their fixed period ends, at which point the adjustment arrives all at once, producing a payment shock rather than a gradual increase.
Which is why the effect on households has been so uneven and so delayed compared to previous cycles.
Savings
Cash loses purchasing power when the interest rate is below inflation, which was the case for an extended period.
Deposit rates lag policy rate increases, as discussed elsewhere, which extends the period of negative real returns.
Inflation-linked savings products exist in several countries with varying terms and availability.
What actually helps
Knowing your own inflation rate by looking at what you actually spend on, which is more informative than the headline.
Attacking fixed costs, since they are where the largest absolute amounts sit.
Checking that any benefit or support you are entitled to is being received, since take-up rates for several are well below entitlement.
Anyone in genuine difficulty should contact a free regulated money advice service, which exists in most countries and can do things no article can.
Loyalty penalties
Where households lose money without any price rise occurring.
Insurance, energy, broadband and mobile contracts frequently price existing customers above new ones.
Which means a household that does nothing pays progressively more relative to the market, and the gap compounds over years.
Regulators in several markets have acted on this in specific sectors, and the practice persists broadly.
An annual review of recurring contracts is among the highest-return uses of an hour available to most households.
Energy specifically
Where the largest recent increases occurred and where the structures are most confusing.
Standing charges apply regardless of usage, which means reducing consumption reduces only part of a bill.
Tariff structures, price caps and support schemes vary by country and change frequently.
Efficiency measures with the best return are generally insulation and draught proofing rather than heating system replacement, which is the reverse of where marketing attention goes.
Food
Unit pricing comparison, own-brand substitution and reducing waste are the three levers with measurable effect.
Household food waste is substantial in most developed countries, and reducing it is equivalent to a direct price reduction.
Benefits and uprating
How support payments are adjusted matters enormously to the households receiving them.
Uprating typically uses an inflation figure from an earlier period, which means the increase arrives well after the price rise it compensates for.
Which produces a real terms fall during the intervening period, precisely for households with the least capacity to absorb it.