- The French economist Jean-Baptiste Say (Say’s Law) transformed the equality of total output and total spending into a law that can be expressed as follows:
- Unemployment is not possible in the short run.
- Demand and supply are never equal.
- Supply creates its own demand.
- Demand creates its own supply.
- Keynesian economics:
- affirms the classical economists’ basic premise concerning competitive markets.
- believes that monopolies and unions tend to be permanent fixtures in our economy and
the prices they create tend to be flexible, at least downwardly. - emphasizes the possibility that an economy can never be in equilibrium at less than
full employment. - prefers to emphasize aggregate supply over aggregate demand.
- believes that unemployment results when aggregate demand is insufficient to reach a full-employment level of real GDP.
- The consumption function expresses the:
- relation between consumption and dissaving.
- relation between consumption and disposable personal income.
- purposes of consumption.
- relation between consumption and dissaving.
- Which of the following will shift the consumption function upward?
- An increase in consumer wealth.
- An increase in the interest rate.
- An increase in personal income taxes.
- A decrease in the MPC.
- An increase in disposable income.
- The consumption function will shift upward if real asset and money holdings:
- increase, if people expect prices to increase, if interest rates decrease, and if taxes decrease.
- increase, if people expect prices to increase, if interest rates increase, and if taxes increase.
- increase, if people expect prices to increase, if interest rates increase, and if taxes decrease.
- decrease, if people expect prices to decrease, if interest rates decrease, and if taxes decrease.
- decrease, if people expect prices to increase, if interest rates increase, and if taxes decrease.
- Consumption spending that is independent of the level of disposable income is known as:
- marginal consumption.
- transitory consumption.
- permanent consumption.
- relative consumption.
- autonomous consumption.
- If your disposable personal income increases from $33,000 to $41,000 and your consumption increases from $8,000 to $12,000, your marginal propensity to consume (MPC) is:
- 0.2.
- 0.4.
- 0.5.
- 0.8.
- 1.0.
- If the marginal propensity to consume = 0.75, then:
- the marginal propensity to save = 0.75.
- the marginal propensity to save = 1.33.
- the marginal propensity to save = 0.20.
- the marginal propensity to save = 0.25.
- since the marginal propensity to save and the marginal propensity to consume are unrelated, we cannot determine the marginal propensity to save from the informationgiven.
Exhibit 2 Consumption function
- As shown in Exhibit 2 autonomous consumption is:
- 0.
- $2 trillion.
- $4 trillion.
- $6 trillion.
- $8 trillion.
- As shown in Exhibit 2, saving occurs:
- at 0 disposable income.
- between $0 and $4 trillion disposable income.
- at $4 trillion disposable income.
- at a disposable income greater than $4 trillion.
- As shown in Exhibit 2, the marginal propensity to consume (MPC) is:
- 0.25.
- 0.50.
- 0.75.
- 0.90.
- If the marginal propensity to consume (MPC) is 0.75, a $50 decrease in government spending, other things being equal, would cause equilibrium real GDP to:
- increase by $50.
- decrease by $50.
- increase by $200.
- decrease by $200.
- Suppose equilibrium real GDP is currently at $800 billion and investment is $100 billion. If an increase in the interest rate reduces investment from $100 billion to $75 billion, and the MPC is 0.8, the new level of equilibrium real GDP will be:
- $500 billion.
- $600 billion.
- $675 billion.
- $775 billion.
- $800 billion.
- Given full-employment output = $2,800, equilibrium output = $2,500, and MPS = 0.25, which of the following changes would most likely bring the economy to a full-employment level of national output?
- $300 decrease in taxes.
- $75 increase in government spending.
- $75 decrease in taxes.
- $300 increase in government spending.
- $75 decrease in government spending.
- The sum of consumption (C), investment (I), government spending, (G), and net exports (X-M) is called:
- autonomous spending.
- aggregate expenditures.
- Keynesian income
- wealth.
- In the aggregate expenditures-output model, if aggregate expenditures (AE) are greater than GDP, then:
- inventory is accumulated.
- inventory is unchanged.
- employment decreases.
- employment increases.
- In the aggregate expenditures-output model, if aggregate expenditures (AE) are less than GDP, then:
- inventory is depleted.
- inventory is unchanged.
- employment decreases.
- employment increases.
- In the aggregate expenditures-output model, if an economy operates below equilibrium GDP, there will be:
- unplanned inventory depletion.
- unplanned inventory accumulated.
- a decrease in GDP.
- a decrease in employment.
- In the aggregate expenditures-output model, if an economy operates above equilibrium GDP, there will be:
- unplanned inventory accumulation.
- unplanned inventory depletion.
- an increase in GDP.
- an increase in employment.
- In the aggregate expenditures-output model, if aggregate expenditures (AE) equal $6 trillion and GDP equals $7 trillion, then:
- inventory depletion equals -$1 trillion.
- inventory accumulation equals $1 trillion.
- investment equals $1 trillion.
- investment equals -$1 trillion.
- If the economy spends 80 percent of any increase in real GDP, then an increase in investment of $1 billion would result ultimately in an increase in real GDP of:
- $0.
- $0.8 billion.
- $1.0 billion.
- $5.0 billion.
- Assume the marginal propensity to save is 0.10. Firms become optimistic and increase investment spending by $10 billion. Other things being equal, real GDP will:
- increase by $1 billion.
- not change.
- increase by $10 billion.
- increase by $100 billion.
- The equilibrium level of real GDP is $1,000, the target level of real GDP is $1,250, and the marginal propensity to consume (MPC) is 0.60. The target can be reached if government spending is:
- increased by $60 billion.
- increased by $100 billion.
- increased by $250 billion.
- held constant.