Question 2 Consider the AD-AS model discussed during the lectures. Assume that the aggregate demand curve is given by Y=8-0.5 m, that the long run aggregate supply curve is given by Yp=7, that the short run aggregate supply curve is given by T = T_expect + 0.3(Y-Yp), and that the monetary rule is given by r=1+0.3 T. (a) What is the economic interpretation behind the aggregate demand curve? How does investment change when you move along the AD curve by considering combinations for which inflation decreases and
Question 2 Consider the AD-AS model discussed during the lectures. Assume that the aggregate demand curve is given by Y=8-0.5 m, that the long run aggregate supply curve is given by Yp=7, that the short run aggregate supply curve is given by T = T_expect + 0.3(Y-Yp), and that the monetary rule is given by r=1+0.3 T. (a) What is the economic interpretation behind the aggregate demand curve? How does investment change when you move along the AD curve by considering combinations for which inflation decreases and
Chapter1: Making Economics Decisions
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
Transcribed Image Text:Question 2
Consider the AD-AS model discussed during the lectures. Assume that the
aggregate demand curve is given by Y=8-0.5 m, that the long run aggregate
supply curve is given by Yp-7, that the short run aggregate supply curve is
given by n = 1_expect + 0.3(Y-Yp), and that the monetary rule is given by
r=1+0.3 T.
(a) What is the economic interpretation behind the aggregate demand
curve? How does investment change when you move along the AD
curve by considering combinations for which inflation decreases and
output increases?
(b) Suppose the economy is in equilibrium at the potential level of
output, with inflation expectations equal to actual inflation, which
equals 2%. A loss of consumer confidence hits the economy and leads
to a sudden drop in consumption. Use the model to interpret what
happens in the short run and in the long run if the central bank does
not intervene exogenously with an expansionary monetary policy.
(c) Is fiscal policy more useful, less useful or equally useful compared to
monetary policy to avoid the loss of confidence generating a
recession? Discuss and compare how fiscal and monetary policy can be
separately used in response to the dynamics caused by the loss of
consumer confidence. '
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