GDP Deflator is a price index which measures the Gross Domestic Product (GDP) by adjusting the impact of inflation in an economy.
It is also called the implicit price deflator.
Significance of GDP Deflator
It serves the specific purpose of giving the real GDP from the nominal GDP by deflating the price effect.
It is used as a measure of inflation as it shows the extent to which the increase in GDP has happened on account of higher prices rather than an increase in output.
It is the most general measure of the overall price levels.
It takes into account changes in government consumption, capital formation, international trade and household consumption.
GDP Deflator is not based on a fixed basket of goods and services, it covers the whole economy including services.
Changes in consumption patterns or the introduction of goods and services are automatically reflected in the GDP deflator.
Calculation of GDP Deflator
GDP Deflator is calculated by dividing the nominal GDP by the real GDP and then the result is multiplied by 100.
GDP Deflator = (Nominal GDP / Real GDP) × 100
Nominal GDP captures the value of all goods and services at current prices, while real GDP is the valuation of the same at constant prices without the effect of inflation.
GDP deflator is very similar to other indices like the Consumer Price Index (CPI) and Wholesale Price Index (WPI), but the only difference is GDP deflator is not based on a fixed basket of goods and services. It is determined on the basis of a dynamic basket- which covers all the goods and services in an economy.