Consumer Price Index (CPI)
Also called: consumer price index, cpi vs gdp deflator
The most-watched inflation gauge: the price of a fixed basket of everyday goods and services, tracked over time. Its yearly change is the inflation number in the headlines and the one central banks target.
Where this is taught
Definitions are the trailer. These free levels turn Consumer Price Index into something you play — one bite-size lesson, with worked examples, a quiz and XP.