“GDP is the market value of all final goods and services produced within a country in a given period of time.”
GDP, which measures the total income of a nation. GDP is the most closely watched economic statistic because it is thought to be the best single measure of a society’s economic well-being.
Gross Domestic Product (GDP)
Gross domestic product (GDP) is the market value of all officially recognized final goods and services produced within a country in a given period of time. GDP per capita is often considered an indicator of a country's standard of living.
GDP per capita is not a measure of personal income. Under economic theory, GDP per capita exactly equals the gross domestic income (GDI) per capita.
GDP is related to national accounts, a subject in macroeconomics. GDP is not to be confused with gross national product (GNP) which allocates production based on ownership.
Determining GDP
GDP can be determined in three ways, all of which should, in principle, give the same result.
They are the product (or output) approach, the income approach, and the expenditure approach.
The most direct of the three is the product approach, which sums the outputs of every class of enterprise to arrive at the total. The expenditure approach works on the principle that all of the product must be bought by somebody, therefore the value of the total product must be equal to people's total expenditures in buying things. The income approach works on the principle that the incomes of the productive factors ("producers," colloquially) must be equal to the value of their product, and determines GDP by finding the sum of all producers' incomes.
Example: the expenditure method:
GDP = private consumption + gross investment + government spending + (exports − imports), or Economists (since Keynes) have preferred to split the general consumption term into two parts; private consumption, and public sector (or