申論題

6. Desired consumption is C^d = 1000 + 0.8Y- 75,000r - G, and desired investment is I^d = 400 - 25,000r. Real money demand is M^d/P = Y - 50,000i. Other variables are = 2,000, and money supply M^s= 3000. r denotes the real interest rate, i denotes the nominal interest rate, G denotes the government spending,π^e is the expected inflation rate, P is the price level, and is the full-employment level of output.