8. (1.5 point) Aggregate spending Refer to the below graph for this question. Spending + C + Iplanned 1500 600 500 200 500 1500 Income Figure 2: Aggregate Demand and Supplya. (0.5 points) What are the level of autonomous consumption and planned investment spending? b. (0.5 points) Derive planned aggregate spending equation. c. (0.5 points) At an income of 500, what is the unplanned inventories investment? Refer to the Keynesian Cross diagram below. 45' AE3 AE2 45 AE1 30 15 Y 20 40 60 5. Calculate the MPC and spending multiplier of this economy: a. 3/4, 4/3 b. 1/4, 4/3 c. 1/2, 2 d. 1/4, 2 6. Suppose planned aggregate expenditure is given by curve AE2. Then, there is a stock market boom, leading to an increase in household wealth. What would be the new AE curve and new equilibrium GDP level? a. AE1, 20 b. AE1, 40 C. AE3, 60 d. AE3, 45