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Ch 8:Aggr Supply & Aggr Demand
Unit 3 - Foundations of Macroeconomics
40
Economics
Undergraduate 1
01/22/2008

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Term
Aggregate Supply
Definition
  • The relationship between the quantity of real GDP supplied and the price level when all othe rinfluences on firm's production plans remain the same
  • Other things remaining the same, the higher the price level, the greater is the quantity of real GDP supplied and the lower price level, the smaller is the quantity of real GDP supplied
Term
What are the factors that affect the quantity of real GDP supplied?
Definition

The quantity of real GDP supplied depends on

  1. The quantities of capital and human capital and the technolgies they embody
  2. The quantities of land and natural resources used
  3. The amount of entreprenueral talent available
  4. The quantity of labour employed
Term
Money wage rate
Definition
The "money wage rate" (W) is short-hand for total money wage costs per production employee, including benefits and payroll taxes
Term

How does prices affect the quantity of real GDP supplied?

Definition
  1. Real GDP supplied increases when the price level rises
  2. Real GDP supplied decreases when the price level falls
  3. These changes brings a movement along the aggregate supply.

Term
Why does the quantity of real GDP supplied increase when the price level rises and decrease when the price level falls?
Definition
A movement in along the AS curve brings a change in the real wage rate (and the money wage rate remains the same). IF the price level rise, the real wage rate falls and if the price level falls, the real wage rate rises
Term
How does firms respond to a change in real wage rate and profit?
Definition
  1. Go out of business or start up in business
  2. Shut down temporarily or restart production
  3. Change their output rate
Term
When does aggregate supply changes?
Definition
  1.  Production Plan changes other than the price level
  2. Potental GDP Changes
  3. The money wage rate changes
Term

How does an increase in potential GDP affects the Aggregate Supply curve?

Definition
  1. An increase in the Potential GDP increases the aggregate supply. It shifts the curve rightward

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Term
How does an increase in money wage rate decreases aggregate supply?
Definition
  • A rise in the money wage rate decreases the aggregate supply. It shifts the curve leftward
Term
Aggregate Demand
Definition
The relationship between the quanttity of real GDP demanded and the price level when all other influences on expenditure plans remain the same
Term

How does price level affect real GDP?

Definition
The higher the price level, the smaller is the quantity of real GDP demanded and the lower the price level, the greater is the quantity of real GDP demanded
Term

Quantity of real GDP demanded

Definition
Is the total amount final goods and services produced in Canada that people, business, governments and foreigners plan to buy
Term
What is the formula to calculate quantity of real GDP demanded?
Definition

 

Y = C + I + G + X - M

 

Y = Quantity of real GDP demanded

C = Consumption expenditure

I = Investment

G = Government Expenditure

X = Exports

M = Imports

Term

A change in price level brings changes in (3)

Definition
  1. The buying power of money
  2. The real interset rate
  3. The real prices of exports and imports
Term
Change in Aggregate Demand
Definition
A change in any factor that influences expenditure plans other than the price level brings a change in aggregate demand
Term
What are the factors that change aggregate demand?
Definition
  1. Expectations about the future
  2. Fiscal policy and monetary policy
  3. The state of the world economy
Term

What increases Aggregate Demand?

Definition
  1. Expected future income, inflation or profits increase
  2. The government or Bank of Canada takes steps to increase planned expenditure
  3. The exchange rate falls or the global economy expands
Term
What decreases Aggregate Demand?
Definition
  1. Expected future income, inflation or profits decrease
  2. The government or Bank of Canada takes steps to decrease planned expenditure
  3. The exchange rate rises  or the global economy contracts
Term
Fiscal Policy
Definition
Changes in taxes, transfer payments and government expenditure on goods and services
Term
Monetary Policy
Definition
Changes in the quantity of money and the interest rate
Term
What are the two main influences that the world economy has on Canada?
Definition
  1. Foreign Exchange rate
  2. Foreign Real income
Term
Foreign Exchange Rate
Definition
Is the amount of foreign currency that you can buy
Term

Aggregate Demand Multiplier

Definition
Is an effect that magnifies changes in expenditure plans and brings potentailly large fluctuations in aggregate demand
Term
Macroeconomic Equlibrium
Definition
When the quantity of real GDO demanded equals the quantity of real GDP supplied at hte point of intersection of the AD cyrve and the AS curve
Term
Full employment equilibrium
Definition

When equilibrium real GDP

equals

Potential GDP

Term
Above full-employment equilibrium
Definition

When equilibriun real GDP

exceeds

Potential GDP

Term
Below full-employment equilibrium
Definition

When potential GDP

exceeds

equlibrium real GDP

Term
Recession
Definition
A decrease in real GDP that lasts for at least two quarters (six months)
Term
Stagflation
Definition
A combination of recession (decreasing Real GDP) and inflation (rising price level)
Term
Inflationary Gap
Definition
A gap that brings a rising price level
Term
Deflationary Gap
Definition
A gap that brings a falling price level
Term
Explain the influences on aggregate supply?
Definition
P.115
Term
Explain the influences on aggregate demand
Definition
P.115
Term
Explain how aggregate supply and aggregate demand determine real GDP and the price level
Definition
P.115
Term
Explain how changes in aggregate supply and aggregate demand bring economic growth, inflation, and the business cycle
Definition
P.115
Term
What are the other influences that affects the Aggregate Supply curve
Definition
1. Money Wage rate
2. Potentiial GDP
Term
How does a change in real wage rate affect a firm's profit
Definition
A change in real wage rate means that the cost of labour changes relative to the revenue than an hour of labour can produce and it changes a firm's profit. A rise in real wage rate cuts into a firm's profit and a fall in the real wage rate boosts a firm's profit.
Term
What happens when money wage rate remains constant and the price level rises?
Definition
The quantity of labour hired increases and the quantity of real GDP supplied increases
Term
True or False

Anything that changes Potential GDP changes aggregate supply and shifts the aggregate supply curve
Definition
T
Term
True or False

A change in the money wage rate changes aggregate supply because it changes firm's costs.
Definition
T
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