Consumption is the flow of households’ spending o goods and services which yield utility in the current period. Investment is firms ‘spending on goods which are not for current consumption but which yield a flow of consumer goods and services in the future.
What are the four components of aggregate expenditures?
We can calculate aggregate demand by adding up its four components: consumption expenditure, investment expenditure, government spending, and spending on net exports—exports minus imports.
What is included in government consumption expenditures?
Government consumption expenditures include spending by governments to produce and provide services to the public, such as national defense and education.
How are aggregate expenditures calculated?
The aggregate expenditure is the sum of all the expenditures undertaken in the economy by the factors during a specific time period. The equation is: AE = C + I + G + NX. The aggregate expenditure determines the total amount that firms and households plan to spend on goods and services at each level of income.
What is the average expenditure?
To calculate the average expenditure across several columns, multiply the estimated number of households by the average expenditure for an item for each of the columns being combined. Sum the results. Then divide this total by the sum of the estimated number of households.
How is consumption expenditure related to national income?
We’ve established that consumption expenditure increases with national income; thus in a macroeconomic context, the same thing is true of imports—the purchase of imports increases with national income. The demand by foreigners for our exports depends on their national income, but it is independent of our domestic national income.
How are investment and government spending related to aggregate expenditure?
Investment spending and government spending are fixed amounts; thus, adding the investment and government spending functions shifts the aggregate expenditure line up, parallel to the consumption function. Export expenditures are also a fixed amount, but import expenditures are not.
How are investment, government spending and net export functions constructed?
Explain the investment, government spending, and net export functions Explain how the aggregate expenditure curve is constructed from the consumption, investment, government spending and net export functions Aggregate Expenditure = C + I + G + (X – M).
What is the consumption function before and after taxes?
The Consumption Function Before and After Taxes. The upper line repeats the consumption function from previously. The lower line shows the consumption function if taxes must first be paid on income, and then consumption is based on after-tax income. Table 2. The Consumption Function Before and After Taxes
