# Consumer Price Index in the United States
Who / What
The **Consumer Price Index (CPI)** in the United States is a statistical measure published monthly by the U.S. Bureau of Labor Statistics that tracks the weighted average change over time in the prices paid by urban consumers for a basket of goods and services, such as food, housing, transportation, and medical care. It serves as a key indicator of inflation and economic stability within the country.
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Background & History
The CPI was established to provide data on consumer price trends, reflecting changes in the cost of living. The U.S. Bureau of Labor Statistics (BLS), which publishes these indices, has been conducting regular price surveys since the early 20th century. Key milestones include the introduction of standardized methodologies for calculating inflation in the mid-1970s and the development of alternative CPI variants like the **CPI-U** (all urban consumers) and **CPI-W** (workers’ basket), which are used for indexing benefits such as Social Security.
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Why Notable
The CPI is widely regarded as one of the most critical economic indicators in the U.S., influencing monetary policy decisions by central banks, government budget planning, and consumer financial decisions. Its accuracy and reliability make it a cornerstone of macroeconomic analysis, helping policymakers assess inflation trends and adjust policies accordingly. The index also plays a pivotal role in determining cost-of-living adjustments for social programs and contracts.
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In the News
The CPI remains highly relevant today due to ongoing economic challenges such as supply chain disruptions, energy price fluctuations, and post-pandemic recovery effects. Recent data has highlighted persistent inflation pressures, influencing Federal Reserve decisions on interest rates and guiding public discussions on affordability in housing, healthcare, and transportation.
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Key Facts
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