What the index measures
The Consumer Price Index measures changes in prices paid by urban consumers for a representative basket of goods and services. It is an average measure, rather than a receipt for any individual household. Spending patterns help explain why personal experience can differ from the headline.
A simple illustration
Imagine a basket rising from $100 to $110, then to $112. Inflation has slowed in the second period, but the basket still costs more. These figures are a teaching example, not reported US data. Falling inflation is often called disinflation; a decline in the price level is a different outcome.
The question for a household
Our interpretation is that purchasing power deserves a place beside the inflation headline. Compare the relevant price changes with income, and look at the categories that dominate the household budget. A national average cannot settle whether a particular family feels better off. Check the period, the measure and whether the comparison uses seasonally adjusted data before drawing a conclusion.
Go to the source
Bureau of Labor Statistics · CPI questions and answers ↗
Sources consulted October 17, 2026. This is an AI-assisted sample explainer, not a current news report. Commentary and illustrative examples are identified in the text. External sources do not endorse this publication.
Educational background, not personalized financial advice. Read our editorial standards.