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Exam III Macroeconomics
For Wyatt PHCC
57
Economics
Undergraduate 2
11/02/2012

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Term
What is Keynesian economics based primarily around?
Definition
Consumption
Term
What are the key differences between the Classical and Keynesian view of economics?
Definition
1) Say's Law: may not hold in money economy; more output than demanded
2) Savings: savings dependent on interest rate; ie more interest rate more saved
3) Investment: pessimistic expectations; lower interest rate makes no investment
4) Prices/Wages: May be inflexible downward.
Term
Efficiency Wage Models
Definition
These models hold that it is sometimes in the best interest of business firms to pay their employees higher-than-equilibrium wage rates.
Term
What is the Keynesian perspective on wage rates?
Definition
They are more flexible up than down. It can even be inflexible to decrease them.
Term
What does Keynesian economics focus on?
Definition
The short run; Keynesian economists believe that the long run could happen too much later to count it
Term
What is the consumption function?
Definition
C = C0 + (MPC)(Yd); the direct relationship between consumption and disposable income
Term
Marginal Propensity to Consume (MPC)
Definition
The ratio of the change in consumption to the change in disposable income. MPC = [change in consumption]/[change in disposable income (Yd)]
Term
Autonomous Consumption
Definition
The part of consumption that is independent of disposable income.
Term
What is the consumption function in words?
Definition
Consumption = Autonomous Consumption + (Marginal propensity to consume)(Disposable income)
Term
What can cause an increase in consumption?
Definition
Raise autonomous consumption, raise disposable income, or raise the MPC
Term
Marginal Propensity to Save (MPS)
Definition
The ratio of the change in saving to the change in disposable income. MPS = [change in savings]/[change in disposable income (Yd)]
Term
What is the savings function in words?
Definition
Saving = Disposable income - [Consumption + (Marginal propensity to consume)(Disposable income)]
Term
What is the savings function?
Definition
S = Yd - [C0 - (MPC)(Yd)]
Term
What is the formula for the relation between MPC and MPS?
Definition
MPC + MPS = 1
Term
The formula for the multiplier (m)?
Definition
1/[1 - MPC]
Term
Multiplier
Definition
The number that is multiplied by the change in autonomous spending to obtain the overall change in total spending. If the economy is operating below Natural Real GDP, then the multiplier turns out to be the number that is multiplied by the change in autonomous spending to obtain the change in Real GDP.
Term
Change in total spending formula?
Definition
Multiplier times change in autonomous spending (m * [change in C0])
Term
How does the aggregate supply curve look in Keynesian economics?
Definition
It is horizontal until it reaches the natural Real GDP, because the simply Keynesian model assumes that the price level is constant until QN is reached.
Term
What did Keynes believe about private sectors in regards to aggregate demand?
Definition
He felt that they could not always move the AD curve.
Term
When does Keynes believe the government should intervene in a recessionary gap?
Definition
When the private sectors cannot self-regulate the economy to the natural Real GDP point.
Term
Summarize the simple Keynesian model.
Definition
1) Price level is constant until Qn is reached.
2) AD curve shifts if there are changes in C I or G
3) Economy can be in recession and equilibrium at same time
4) Private sector cannot always get economy out of recession (cannot increase C/I enough)
5) Government has a role to play in economy in a situation where the PI cannot affect AD enough to get out of recession
Term
What are three terms for the Keynesian model?
Definition
Keynesian cross, income expenditure, and total expenditure-total production.
Term
What are generally constant when deriving a total expenditures curve?
Definition
Investment and Government purchases
Term
What can shift the total expenditures curve?
Definition
Consumption, investments, or government spending
Term
When TE < TP..
Definition
Overproduction; too much inventory. To balance: Causes a cut back in the production of quantity of goods. Causes Real GDP to fall; makes Real GDP closer to amount 3 sectors are willing and able to buy; ultimately TE = TP
Term
When TE > TP..
Definition
Underproduction; increase their production. Causes real GDP to rise; in process bringing Real GDP that 3 sectors are willing and able to buy. Ultimately TP = TE
Term
When TE = TP..
Definition
Inventories are at optimum levels.
Term
In the portrayal of TE and TP, summarize the simple Keynesian model.
Definition
1) Price level is constant until Qn is reached.
2) TE curve shifts if change in C I or G
3) Economy can be in recession & equilibrium
4) Private sector cannot always get economy out of recession
5) Government has role to play in economy
Term
The federal budget is composed of what two parts?
Definition
Government expenditures and taxes
Term
Progressive income tax
Definition
An income tax system in which one's tax rate rises as one's taxable income rises (up to some point)
Term
Proportional income tax
Definition
An income tax system in which a person's tax rate is the same no matter what his or her taxable income is
Term
Regressive income tax
Definition
An income tax system in which a person's tax rate declines as his or her taxable income rises.
Term
Budget deficit
Definition
Government expenditures > tax revenues
Term
Budget surplus
Definition
Tax revenues > government expenditures
Term
Balanced budget
Definition
Tax revenues = government expenditures
Term
Cyclical deficit
Definition
The part of the budget deficit that would exist even if the economy were operating at full employment
Term
Structural deficit
Definition
The part of the budget deficit that would exist even if the economy were operating at full employment
Term
Public debt (national/federal debt)
Definition
The total amount that the federal government owes its creditors
Term
Total budget deficit formula?
Definition
Structural deficit + cyclical deficit
Term
Fiscal Policy
Definition
Changes in government expenditures and/or taxes to achieve economic goals, such as low unemployment, stable prices, and economic growth
Term
Expansionary Fiscal Policy
Definition
Increases in government expenditures and/or decreases in taxes to achieve particular economic goals
Term
Contractionary Fiscal Policy
Definition
Decreases in government expenditures and/or increases in taxes to achieve economic goals
Term
Discretionary Fiscal Policy
Definition
Deliberate changes of government expenditures and/or taxes to achieve economic goals
Term
Automatic Fiscal Policy
Definition
Changes in government expenditures and/or taxes that occur automatically without (additional) congressional action.
Term
Crowding out
Definition
The decrease in private expenditures that occurs as a consequence of increased government spending or the financing needs of a budget deficit
Term
Complete crowding out
Definition
A decrease in one or more components of private spending that completely offsets the increase in government spending
Term
Incomplete crowding out
Definition
The decrease in one or more components of private spending that only partially offsets the increase in government spending
Term
What is an example of a direct effect of crowding out?
Definition
The government spends more on public libraries, and individuals buy fewer books at bookstores.
Term
What is an example of an indirect effect of crowding out?
Definition
The government spends more on social programs and defense without increasing taxes; size of deficit increases. Causes more borrowing funds to finance the debt, which in turn causes interest rates to rise, which in turn then causes investment to drop.
Term
What is lag, and what are five types of lag?
Definition
LAGGGGGGGGG; data lag: policy makers are not aware of changes in economy as soon as they happen
wait-and-see lag: policy makers dont enact immediately in hopes it changes
legislative lag: Congress/president take a while to put an act into place
transmission lag: Fiscal policy takes a while to go into affect
effectiveness lag: takes time to effect economy after a policy is in place
Term
Belief in supply-side fiscal policy?
Definition
Tax rates affect supply and demand
Term
Marginal tax rate formula?
Definition
[change in tax payment]/[change in taxable income]
Term
Marginal (Income) Tax Rate
Definition
The change in a person's tax payment divided by the change in his or her taxable income.
Term
What is the Laffer curve?
Definition
The belief that tax rates are best at a level other than the highest or the lowest; ie 0-100 50 may be the best tax rate due to consumption
Term
Tax revenues formula?
Definition
Tax base * (average) Tax rate
Term
Laffer curve
Definition
The curve, named after Arthur Laffer, that shows the relationship between tax rates and tax revenues. According to the Laffer curve, as tax rates rise from zero, tax revenues rise, reach a maximum at some point, and then fall with further increases in tax rates.
Term
Tax Base
Definition
In terms of income taxes, the total amount of taxable income.
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