Answer to Question #142828 in Macroeconomics for john

Question

In the economy of Keynesian Island, autonomous consumption expenditure is $50 million, and the marginal propensity to consume is 0.8. Investment is $160 million, government expenditure is $190 million, and net taxes are $250 million. Investment, government purchases, and taxes are constant—they do not vary with income. The island does not trade with the rest of the world.
a) Draw the aggregate expenditure curve. (5 marks)
b) What is equilibrium real GDP for Keynesian Island? (6 marks)
c) What is the size of the multiplier in Keynesian Island's economy? (4 marks)
d) If the government increases its purchases by $200 million, what will be the change in the economy's equilibrium real GDP? Show the change on the graph as well.

Answer 1

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