A headline can say that inflation has fallen while a household still pays more for groceries than it did a year earlier. The two observations can be consistent. One describes how quickly prices are changing; the other describes the level they have reached.
A slower climb is still a climb
The International Monetary Fund explains inflation as the rate at which prices increase over a period. A lower positive rate means the increase has slowed. It does not, by itself, mean that prices have returned to an earlier level.
Consider an invented example. A basket costing 100 rises to 110, then to 115.50. The first increase is 10 per cent and the second is 5 per cent. The rate has halved, but the basket costs more after both increases. These figures illustrate arithmetic, not a current inflation reading.
An average is not every household
Price indices combine many goods and services. A household spending a larger share of its income on one category may have a different experience from the overall measure.
This is why an explanation of inflation should identify the index, the comparison period and the categories moving most. Comparing a monthly change with an annual rate can create a misleading impression even when both numbers are accurate.
Read the headline with three questions
First, are prices rising more slowly, staying broadly level or falling? Second, is the figure about the whole basket or a particular category? Third, does the comparison describe this month, a year or a longer period?
The answers help explain why official statistics and everyday experience can sound different. Neither needs to be dismissed; they need to be compared on the same terms.
