The consumption function for a closed economy with no government sector is given by the equation: C = £200 million + 0.8 Y where C is aggregate consumption and Y is national income. (i) Calculate the value of aggregate savings if the level of national income is £4000 million. Show all your workings. (ii) Calculate the equilibrium level of national income if the level of planned investment is £600 million. Show all your workings. (iii) Calculate the level of aggregate consumption at the equilibrium level of national mo ift ont ig f1000 Shour ol1

MACROECONOMICS
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ISBN:9781337794985
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Chapter9: Demand-side Equilibrium: Unemployment Or Inflation?
Section9.A: The Simple Algebra Of Income Determination And The Multiplier
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The consumption function for a closed economy with no government sector is given by the
equation:
C = £200 million + 0.8 Y
where C is aggregate consumption and Y is national income.
(i) Calculate the value of aggregate savings if the level of national income is £4000 million.
Show all your workings.
(ii) Calculate the equilibrium level of national income if the level of planned investment is
£600 million. Show all your workings.
(iii) Calculate the level of aggregate consumption at the equilibrium level of national
income if the level of planned investment is £1000 million. Show all your workings.
(iv) Calculate the change in national income if planned investment rose from £600 million
to £800 million. Show all your workings.
Transcribed Image Text:The consumption function for a closed economy with no government sector is given by the equation: C = £200 million + 0.8 Y where C is aggregate consumption and Y is national income. (i) Calculate the value of aggregate savings if the level of national income is £4000 million. Show all your workings. (ii) Calculate the equilibrium level of national income if the level of planned investment is £600 million. Show all your workings. (iii) Calculate the level of aggregate consumption at the equilibrium level of national income if the level of planned investment is £1000 million. Show all your workings. (iv) Calculate the change in national income if planned investment rose from £600 million to £800 million. Show all your workings.
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