National income can be measured by three methods — the income method, the product (value-added) method, and the expenditure method. The expenditure method measures national income by adding up the total spending on all final goods and services produced in a country during a year. The basic idea is that the total value of goods and services produced must equal the total amount spent on buying them. This method is also called the 'final expenditure method' or the 'income disposal method'.
The expenditure method measures national income by adding all final expenditure.
It is based on the idea: total production = total expenditure on final goods.
Formula: GDP at MP = C + I + G + (X − M).
C = private consumption, I = investment, G = government spending, (X − M) = net exports.
Only final expenditure is counted to avoid double counting.
National Income (NNP at factor cost) is found after adjusting for depreciation, NFIA and net indirect taxes.
Expenditure on second-hand goods, shares and bonds is not included.
The expenditure method calculates national income by adding together all the final expenditures made in the economy during a year on goods and services.
The main idea is: Total production = Total expenditure on final goods and services.
Only 'final' expenditure is counted, not intermediate expenditure, to avoid double counting. Final goods are those bought for final use, not for resale or further production.
The total of all final expenditures gives the Gross Domestic Product at market price (GDP at MP). After certain adjustments, national income (NNP at factor cost) is obtained.
The expenditure method adds up four main components:
Private Final Consumption Expenditure (C): Spending by households on goods and services for personal use.
Gross Domestic Capital Formation / Investment (I): Spending by businesses on capital goods (machines, buildings) and changes in stock (inventory).
Government Final Consumption Expenditure (G): Spending by the government on goods and services for the public.
Net Exports (X − M): Exports (X) minus imports (M) — the value of goods sold abroad minus goods bought from abroad.
Formula: GDP at Market Price = C + I + G + (X − M)
Steps in the expenditure method:
Precautions: • Count only final expenditure (avoid double counting). • Do not include expenditure on second-hand goods. • Do not include expenditure on shares and bonds (these are only transfers of money).
The expenditure method measures national income by adding up the total spending on all final goods and services produced in a country during a year. It is based on the idea that the total value of production equals the total expenditure on it. The four components added are private consumption, investment, government spending and net exports.
The expenditure method adds four components: (1) Private Final Consumption Expenditure (C) — household spending; (2) Gross Domestic Capital Formation or Investment (I); (3) Government Final Consumption Expenditure (G); and (4) Net Exports (X − M), which is exports minus imports. Their sum gives GDP at market price: GDP = C + I + G + (X − M).
The formula is GDP at Market Price = C + I + G + (X − M), where C is private consumption expenditure, I is investment (gross domestic capital formation), G is government final consumption expenditure, and (X − M) is net exports (exports minus imports).
The main precautions are: count only final expenditure to avoid double counting; do not include expenditure on second-hand (used) goods; and do not include money spent on buying shares and bonds, because these are only financial transfers and do not represent production of goods and services.
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