The consumer price index measures private goods as well as public goods.

Question

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The Consumer Price Index (CPI) primarily measures the average change over time in the prices paid by urban consumers for a market basket of consumer goods and services, focusing on private goods and services. Public goods, which are non-excludable and non-rivalrous, and typically provided by the government without direct charges to consumers, are not directly measured by the CPI.

The Consumer Price Index Measures Private Goods as Well as Public