Official inflation measures prices in a representative weighted basket. Each household has its own spending pattern, so its experienced cost-of-living increase can differ from the headline rate.
A price rise has a larger effect when the item takes a bigger share of spending. Rent can be a major expense for a tenant but absent from the cash budget of an owner-occupier. That difference does not make the official index wrong: it describes a different set of weights.
Suppose food costs AZN 500, rent 300 and transport 200. With respective price changes of 10%, 0% and 5%, the same basket costs AZN 1,060, an increase of 6%. This is a simplified illustration holding quantities and quality constant, not an estimate of inflation in Azerbaijan.
| Expense | Before | After |
|---|---|---|
| Food | 500 | 550 |
| Rent | 300 | 300 |
| Transport | 200 | 210 |
| Total | 1,000 | 1,060 |
Taking more taxis or buying a more expensive phone increases spending for reasons beyond prices. Compare a consistent set of products, quantities and quality, showing changes in consumption separately. Buying a home is also not the same thing as buying a monthly consumer basket.
Group spending from an ordinary base month into several categories and later price the same basket. Avoid treating an exceptional holiday month as normal. For infrequent large purchases, consider a longer period and state the method. The result is a personal estimate, not a replacement official price index.
Compare the headline with prices in the categories that matter most to you. Slower inflation means prices are rising more slowly, not necessarily falling. A favourable macroeconomic headline can therefore coexist with expensive groceries and a higher family shopping bill.
No. A positive rate still means prices are rising against the comparison period, only more slowly.
An unweighted average can mislead. Spending shares and comparable products must be taken into account.
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