A statistical tool used to convert current dollars into inflation-adjusted dollars, in order to compare prices over time after factoring out the overall effects of inflation.

Use deflator in a sentence

You need to make sure that you are breaking things down right when you are using a deflator to get info.

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To find out the exact conversion, deflators are incredibly helpful for many economists to get a good idea of a number.

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I used a deflator to determine that my savings bonds were not really a great investment instrument and I should be putting my money in higher return ETF's.

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real rate of return GNP deflator