8~9. Use the following information to solve two questions.
C = 100 + 0.8Yd (Consumption), I = 200 –1,000i (Investment) L = Y – 10,000i (Money Demand) G = 550, T = 500, Ms = 900, Yd = Y – T
8. Find the equilibrium level of Y, I, C and interest rate (i).
9. Suppose the independent investment is decreased up to 90 from 200. (A) Find the new equilibrium level of Y, C and i. (B) How much does Bank of Korea change the money supply to get the initial level of GDP?