6. Suppose real GDP in an economy equals its potential output of $2,000 billion, the multiplier is 2.5, investment is raised by $200 billion, and the increased investment does not affect the economy's potential. a. Show the short- and long-run effects of the change upon real GDP and the price level, using

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6. Suppose real GDP in an economy equals its
potential output of $2,000 billion, the multiplier is
2.5, investment is raised by $200 billion, and the
increased investment does not affect the
economy's potential.
a. Show the short- and long-run effects of the
change upon real GDP and the price level, using
the graphical framework for the model of
aggregate demand and aggregate supply.
b. Would real GDP rise by the multiplier times the
change in investment in the short run? In the long
run? Explain.
Transcribed Image Text:6. Suppose real GDP in an economy equals its potential output of $2,000 billion, the multiplier is 2.5, investment is raised by $200 billion, and the increased investment does not affect the economy's potential. a. Show the short- and long-run effects of the change upon real GDP and the price level, using the graphical framework for the model of aggregate demand and aggregate supply. b. Would real GDP rise by the multiplier times the change in investment in the short run? In the long run? Explain.
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