Q8 Determine the equilibrium income Y and interest rate r, given the following information about the commodity market: C = 0.6Y + 60 1 = -40r + 1300 where C and I denote consumption and planned investment, respectively, and the follow- ing information about the money market: M = 600 L, = 0.2Y L2 = -30r + 40

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Q8
Determine the equilibrium income Y and interest rate r, given the following information
about the commodity market:
C = 0.6Y + 60
I = -40r + 1300
where C and I denote consumption and planned investment, respectively, and the follow-
ing information about the money market:
M5 = 600
L, = 0.2Y
L2 = - 30r + 40
%3D
%3D
where Ms, L1 and L2 denote money supply, transaction-precautionary demand for money
and speculative demand for money, respectively.
The marginal propensity to consume decreases. By producing a rough sketch of the IS
and LM curves on the same diagram, explain whether the equilibrium values of Y and r
will increase, decrease or stay the same.
Transcribed Image Text:Q8 Determine the equilibrium income Y and interest rate r, given the following information about the commodity market: C = 0.6Y + 60 I = -40r + 1300 where C and I denote consumption and planned investment, respectively, and the follow- ing information about the money market: M5 = 600 L, = 0.2Y L2 = - 30r + 40 %3D %3D where Ms, L1 and L2 denote money supply, transaction-precautionary demand for money and speculative demand for money, respectively. The marginal propensity to consume decreases. By producing a rough sketch of the IS and LM curves on the same diagram, explain whether the equilibrium values of Y and r will increase, decrease or stay the same.
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