In an economy with no government and no foreign sectors, autonomous consumer spending is $250 billion, planned investment spending is $350 billion, and the marginal propensity to consume is.

1. Plot the aggregate consumption function and planned aggregate expenditure.
2. What is unplanned inventory investment when real GDP equals $600 billion?
3. What is,income-expenditure equilibrium GDP?
4. What is the value of the multiplier?
5. If planned investment spending rises to $450 billion, what will be the new?