Question 4. The short run: from IS/LM to aggregate demand An economy is as follows Goods market: slc=5 MPC=0.72 Go=20, T=18 Financial market: I 18 200r IS: Y = 5 +0.72(Y - 18) +22+ 18 - 200r M 0.02 P Y 5000 LM: Money market 0.02 M P Answers Provided: 4. (a) 80.4, 4.77% = M=40, P=2 (a) In the long-term equilibrium before shocks and policies, the expenditure is Y=74, r=4.65, and P=2. Given the IS/LM equations, Y 5000/ 2 The government spending changes to G₁=22. Find the new very short run equilibrium output. (b) Graph the comparative statics (before and after) of the very short run equilibrium in terms of IS/LM and, on a separate graph, in terms of the AD curve. Label all axes, curves, and values. Note: you can but do not need to calculate the new equilibrium interest rate. While graphing AD, remember the definition of the very short run.
Question 4. The short run: from IS/LM to aggregate demand An economy is as follows Goods market: slc=5 MPC=0.72 Go=20, T=18 Financial market: I 18 200r IS: Y = 5 +0.72(Y - 18) +22+ 18 - 200r M 0.02 P Y 5000 LM: Money market 0.02 M P Answers Provided: 4. (a) 80.4, 4.77% = M=40, P=2 (a) In the long-term equilibrium before shocks and policies, the expenditure is Y=74, r=4.65, and P=2. Given the IS/LM equations, Y 5000/ 2 The government spending changes to G₁=22. Find the new very short run equilibrium output. (b) Graph the comparative statics (before and after) of the very short run equilibrium in terms of IS/LM and, on a separate graph, in terms of the AD curve. Label all axes, curves, and values. Note: you can but do not need to calculate the new equilibrium interest rate. While graphing AD, remember the definition of the very short run.
Chapter1: Making Economics Decisions
Section: Chapter Questions
Problem 1QTC
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