The measurements of economic output and their definitions are:
Nominal Gross Domestic Product (GDP) shows just how much goods were produced in a country in a year and when this is adjusted for price changes by using base year prices, this is the Real GDP.
When GDP is divided by the number of people in the country, it is GDP per capita and when adjusted for cost of living differences, it is GDP PPP.
GNP shows the production by the resources of a country including its labor that are in other countries.
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