Price inflation is a critical measure for central banks when setting monetary policy. The Consumer Price Index (CPI) is the most common measure of price inflation in the U.S. and is released ...

WSJ’s Gwynn Guilford explains how the consumer-price index works and what it can tell you about inflation. Illustration: Jacob Reynolds Home Browse Series Live Q&A WSJ Events From Sponsors WSJ.com ...

For many years, the inflation measure used for a wide range of purposes was the Retail Prices Index (RPI). However, over time there have been growing concerns about whether the RPI was an accurate ...

The Retail Price Index (RPI) is a measure of inflation in the UK that tracks changes in the cost of a fixed basket of goods and services, including housing costs such as mortgage interest payments.