Consumer price index

In economics, the Consumer Price Index (CPI, also retail price index) is a statistical measure of a weighted average of prices of a specified set of goods and services purchased by wage earners in urban areas. It is a price index which tracks the prices of a specified set of consumer goods and services, providing a measure of inflation. The CPI is a fixed quantity price index and a sort of cost-of-living index.

Related Topics:
Economics - Statistical - Weighted average - Price - Service - Wage - Urban - Inflation - Price index - Cost-of-living index

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The CPI can be used to track changes in prices of all goods and services purchased for consumption by urban households. User fees (such as water and sewer service) and sales and excise taxes paid by the consumer are also included. Income taxes and investment items (like stocks, bonds, life insurance, and homes) are not included.

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