Chapter 8 - Aggregate Expenditure and Output in the Short Run Flashcards
Aggregate expenditure / AE
Total spending in the economy : the sum of consumption, planned investment, government purchases, and net exports
Aggregate expenditure model
A macroeconomic model that focuses on the short-run relationship between total spending and real GDP, assuming the price level is constant
4 Components that make up AE
- Consumption (C)
- Planned Investment (Ip)
- Gov Purchases (G)
- Net Exports (NX)
Planned aggregate expenditure Formula
Consumption + Planned Investment + Gov Purchases + Net Exports
OR
AE = C + Ip + G + NX
Inventories :
Goods that have been produced but not yet sold
The 5 most important variables that determine the level of consumption:
- Current disposable income
- Household wealth
- Expected future income
- Price level
- Interest rate
Multiplier :
The increase in equilibrium real GDP divided by the increase in autonomous expenditure
Autonomous expenditure :
An expenditure that doesn’t depend on the level of GDP
Multiplier effect :
Process by which an increase in autonomous expenditure leads to a larger increase in real GDP
Formula of multiplier
Change in real GDP / Change in investment spending
Aggregate demand curve / AD Curve:
A curve that shows the relationship between the price level and the quantity of real GDP demanded by households, firms and the gov.
4 most important variable that determine the level of investment :
- Expectations of future profitability
- Interest rate
- Taxes
- Cash flow