The marginal propensity to save is 0.2. equilibrium gdp will decrease by $50 billion if the aggregate expenditures schedule decreases by:$10 billion.
Aggregate expenditures schedule
Using this formula
Aggregate expenditures schedule=Marginal propensity to save×Equilibrium gdp
Where:
Marginal propensity to save=0.2
Equilibrium gdp=$50 billion
Let plug in the formula
Aggregate expenditures schedule=0.2×$50 billion
Aggregate expenditures schedule=$10 billion
Therefore the marginal propensity to save is 0.2. equilibrium gdp will decrease by $50 billion if the aggregate expenditures schedule decreases by:$10 billion.
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