DEFINITION of 'Gross National Product (GNP) Deflator'
An economic metric that accounts for the effects of inflation in the current year's gross national product by converting its output to a level relative to a base period. The GNP deflator is calculated with the following formula:
BREAKING DOWN 'Gross National Product (GNP) Deflator'
The GNP deflator provides an alternative to the Consumer Price Index (CPI). The CPI is based upon a basket of goods and services while the GNP deflator incorporates all of the final goods produced by an economy. This allows the GNP to more accurately capture the effects of inflation since it's not limited to a smaller subset of goods.