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The difference between CPI and PCE seemed relatively insignificant. However, a big issue is the difference between CPI and Core CPI. CPI is the consumer price index. A measure of the cost of living for the typical person. Core CPI is the CPI â energy and food prices.
What it means: Published by the Bureau of Labor Statistics, the Consumer Price Index measures the change in prices paid by consumers for a representative group of products and services. How it's used: The Consumer Price Index (CPI) measures inflation at the consumer level. The CPI is used as an economy-wide measure of inflation and is used to determine annual cost of living adjustments to Social Security payments and employee paychecks. Back to key economic statistics page.