Aggregate Demand A
Aggregate demand is the total demand for domestic output. It is made up of four components
a) consumption by households
b) Investment by businessmen
c) Government purchases
d) Foreign demand
Consumption
The components of aggregate demand shows that important component is consumption spending by person sector. Consumer spending on durable goods such as automobiles spending which might be regarded as investment rather than consumption.
Government
It includes items such as national defense, roads paving, salaries of govt employees.
Investment
Investment means additions to the physical stock of capital. It includes inventories like building construction, building of machinery, human capital.
Human capital us the knowledge and ability to produce that us embodied in labour force.
Net exports
It shows the spending on foreign goods and foreign spendings on domestic goods. The difference between the exports and imports are called as net exports.
Final sales
Total spending by domestic residents of an economy is called as gross domestic purchase.
GDP=finals sales to domestic residents + net exports + inventory change
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