1. Suppose that the US economy is currently at full employment (Real GDP = Potential Real GDP = $15 billion per week), the price level is 100, and the Aggregate Expenditure curve is given by AE = 10 +Y. (Please use the two graphs on the last page.) %3D A. Draw the Aggregate Expenditure curve on the top graph, and the Long Run Aggregate Supply curve on the bottom graph. B. Suppose that, due to investors fearing a recession (animal spirits), Investment drops by $4 billion per week. Show how this change would affect the AE curve on the top graph, and the AD curve on the bottom graph. (Hint: By how much does "A" change? Does "B" change?) What will RGDP be immediately after? C. Why did RGDP fall by more than $4 billion per week? Calculate the Keynesian Multiplier.
1. Suppose that the US economy is currently at full employment (Real GDP = Potential Real GDP = $15 billion per week), the price level is 100, and the Aggregate Expenditure curve is given by AE = 10 +Y. (Please use the two graphs on the last page.) %3D A. Draw the Aggregate Expenditure curve on the top graph, and the Long Run Aggregate Supply curve on the bottom graph. B. Suppose that, due to investors fearing a recession (animal spirits), Investment drops by $4 billion per week. Show how this change would affect the AE curve on the top graph, and the AD curve on the bottom graph. (Hint: By how much does "A" change? Does "B" change?) What will RGDP be immediately after? C. Why did RGDP fall by more than $4 billion per week? Calculate the Keynesian Multiplier.
Chapter1: Making Economics Decisions
Section: Chapter Questions
Problem 1QTC
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
Transcribed Image Text:1. Suppose that the US economy is currently at full employment (Real GDP = Potential Real GDP
= $15 billion per week), the price level is 100, and the Aggregate Expenditure curve is given by
10 +Y. (Please use the two graphs on the last page.)
AE =
A. Draw the Aggregate Expenditure curve on the top graph, and the Long Run Aggregate Supply
curve on the bottom graph.
B. Suppose that, due to investors fearing a recession (animal spirits), Investment drops by $4
billion per week. Show how this change would affect the AE curve on the top graph, and the AD
curve on the bottom graph. (Hint: By how much does "A" change? Does "B" change?) What
will RGDP be immediately after?
C. Why did RGDP fall by more than $4 billion per week? Calculate the Keynesian Multiplier.
D. What happens to the price level, RGDP, and employment in the Short Run? On the top
graph, show how the AE curve shifts, due to the change in prices. (Make sure that the
intersection of the AE curve and AE=Y lines up with the new RGDP!)
E. In the long run, how would the economy return to full employment without government
intervention? On each graph, which curve shifts, and how so? Why doesn't this happen in the
short run?
F. Returning to the situation in Part D, what policy (or policies) would a Keynesian economist
suggest in this situation? How does this get the economy back to full employment?

Transcribed Image Text:AE
AE = Y
20
15
10
AGDP (Sbillions/week)
10
15
25
Price
AD
SRAS
Level
110
100
90
RGDP ($billions/week)
5.
10
15
20
20
LO
LO
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