Changes in the buying power of the dollar are measured by

Group of answer choices

the unemployment rate

the money supply

the consumer price index

interest rates

the consumer price index

Explanation:

Hi, the consumer price index (CPI) is a measure of the average variation of price paid by consumers for a market basket of consumer goods and services.

The buying power of the dollar has a negative correlation with the CPI. If the CPI increases, the buying power of the dollar decreases.  

So, the CPI can be used as a measure for the buying power of the dollar.

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