Chapter1: Making Economics Decisions
Section: Chapter Questions
Problem 1QTC
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Question
Consider the following short-run, closed economy model of the economy.
Goods Market
C = 50 + 0.5(Y – T)
I = 150 – 10r ; NX = -200
G = 150 ; T = 100
M = 20,000
P = 100
L(Y, r) = Y – 50r
1. Find the equilibrium values of r and y. *** This has been answered***
Goods Market = 600 - 20r
Money Market = 200 + 50r
equilibrium value of r = 5.71; Y = 485.8
2. Assume the natural rate of output is Y̅ = 210, individuals do not hold currency (cr = 0), and the reserve requirement is 10% (rr = 0.1). If the Fed desires to return the economy to its natural level, what should they do with reserves (R) and the money supply (M)? What is the new equilibrium real interest rate?
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