The Multiplier Flashcards
When is the multiplier low?
1.When economy is using lots of its capacity and has little to spare
2.MPM is high- leakages from components of AD( AD decrease)
3.Higher inflation causes rising interest which decrease AD
When is the multiplier high?
1.When economy has lost of spare capacity- it can meet high AD
2.MPM and MPI are low- import leakage (less imports)
3.High MPC
4.Low MPS
Equation for MPS
Change in saving/change in gross income
^S/^Y
Equation for MPC
Change in consumption/ change in gross income
What is MPT?
Marginal propensity to tax.
Proportion of additional income that is taxed.
What is MPS?
Marginal propensity to save
Proportion of additional income that is saved.
What is MPM?
Mariginal propensity to import.
Proportion of additional income spent on imports.
What is MPC
Marginal propensity to consume.
Proportion of additional income that is spent in an economy.
Multiplier formula in an open economy.
1/ (MPS + MPM + MPT)
Multiplier formula in closed economy
1/MPS
1/1-MPC
Multiplier ratio formula
Total change in real gdp= injection x multiplier
Definition of the multiplier effect.
A change in it leads to multiplied final changes in the equilibrium of GDP.