The U.S. Bureau of Labor Statistics' Consumer Price Index (CPI) measures the prices of goods and services across the nation.
October 10, 2025
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definition
Basic definition of the CPI as produced by the BLS.
U.S. law requires the Social Security Administration to calculate Cost-of-Living Adjustments (COLAs) using third-quarter Consumer Price Index data and to publish those COLA increases before November 1.
October 10, 2025
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policy
Statutory requirement that links CPI third-quarter data to Social Security COLA publication timing.
The Federal Reserve considers Consumer Price Index data as one of the data inputs when making interest rate decisions.
October 10, 2025
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practice
Role of CPI in informing monetary policy decisions by the Federal Reserve.