Real national income
Real national income is a measure of goods and services at disposal of a country for consumption and investment. Changes in real national income register the real change in country's production.
It can be obtained from money national income in two ways.
Estimating national product at some fixed prices
In India, under revised series of national income accounting, we estimate national income at the prices of 1970-1971.
Using GNP deflator
In this, national income estimates at current prices are obtained. These are called nominal GNP estimates.then by selecting a base year whose price index number is already known. Comparing the base year price index with current year price index and obtain GNP deflator as
GNP deflator = current year price index/base year price index
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