Every time you buy a can of tuna or a new television, its bar code is scanned to record its price and other information. These "scanner data" offer a number of

The consumer price index (CPI) measures the rate at which prices of consumer goods and services change over time. It is used as a key indicator of economic perf

How well does the consumer price index (CPI) reflect the changes that people actually face in living costsâ€"from apples to computers to health care? Given h

Although inflation is much feared for its negative effects on the economy, how to measure it is a matter of considerable debate that has important implications