Michael Parkin
ISBN #9780133872279
12th Edition
839 Questions
Homework Questions
The section reinforces that under fixed price conditions, aggregate planned expenditure (AE) determines real GDP. Equilibrium expenditure is reached when AE equals actual output. Key to this analysis are the consumption and saving functions, which split disposable income into autonomous and induced components. The multiplier effect plays a crucial role in amplifying the impact of changes in autonomous expenditure on the economy, though its magnitude is moderated by factors like taxes and imports. Overall, understanding these relationships is essential for analyzing short-run economic fluctuations and the effects of fiscal policy.
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In an economy, when income increases from $\$ 400$ billion to $\$ 500$ billion, consumption expenditure changes from $\$ 420$ billion to $\$ 500$ billion. Calculate the marginal propensity to consume, the change in saving, and the marginal propensity to save.
The figure illustrates the components of aggregate planned expenditure on Turtle Island. Turtle Island has no imports or exports, no incomes taxes, and the price level is fixed. Calculate autonomous expenditure and the marginal propensity to consume.
The figure illustrates the components of aggregate planned expenditure on Turtle Island. Turtle Island has no imports or exports, no incomes taxes, and the price level is fixed. a. What is aggregate planned expenditure when real GDP is $\$ 6$ billion? b. If real GDP is $\$ 4$ billion, what is happening to inventories? c. If real GDP is $\$ 6$ billion, what is happening to inventories?
Explain the difference between induced consumption expenditure and autonomous consumption expenditure. Why isn't all consumption expenditure induced expenditure?
Explain how an increase in business investment at a constant price level changes equilibrium expenditure.