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Measuring Inflation: Headline, Core and “Supercore” Services
FRB of St. Louis
2024.05.07
Price stability is a fundamental mission of monetary policy, because inflation―a rise in the general price level―that is greater than fairly low levels distorts economic decisions and makes people worse off. To stabilize prices, central banks must measure aggregate price changes. There are many measures of aggregate price changes that differ in what prices they cover and how much weight each price category has.
The following FRED chart shows three of the most important inflation measures: the consumer price index (CPI), the personal consumption expenditures price index (PCEPI) and the gross domestic product (GDP) deflator. The Bureau of Labor Statistics publishes the CPI, while the Bureau of Economic Analysis publishes the PCEPI and the GDP deflator.