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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.
The New York Times. * The CPI is the most widely used measure of inflation and is sometimes viewed as an indicator of the effectiveness of government economic policy. It provides information about price changes in the Nation's economy to government, business, labor, and private citizens and is used by them as a guide to making economic decisions.