Injections
G, X, I
Withdrawals
Savings, Taxes, imports
What does the circular flow of income tell us
National income = National output = National expenditure
Explain the multiplier effect
A change in any component of AD leads to a greater than proportional change in rGDP
How do you calculate the multiplier effect
M = 1 / MPW
Or
M = 1 / 1-MPC