Consider the following consumption function:
Disposable Consumption
Income Expenditure
($ billions) ($ billions)
900 750
1000 800
1100 850
1200 900
1300 950
1400 1000
Suppose desired investment for the economy represented in the table above is $200 billion. Plot the consumption and investment function.
What value is the equilibrium level of income?
What is the marginal propensity to consume?