robots (thousands) pizzas (thousands) 14 13 12 11 10 9 8 7 6 5 4 3 2 1 1 2 3 4 5 6 7 8 a b c d e w...
TRANSCRIPT
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Ro
bo
ts (t
ho
us
an
ds
)
Pizzas (thousands)
1413121110 9 8 7 6 5 4 3 2 1
1 2 3 4 5 6 7 8
A B
C
D
E
W
Attainablebut
Inefficient
Unattainable
Attainable& Efficient
PRODUCTION POSSIBILITIES
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Production Possibilities Curve
Shows: • Opportunity Cost: More pizzas means less
robots• Unempolyment / Inefficiency: Inside the curve• Efficiency: On the curve• Economic Growth: Curve shifts to the right
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Pric
e Le
vel
Real Domestic Output, GDP
AS
AD
AGGREGATE DEMAND / AGGREGATE SUPPLY
EquilibriumReal Output
Y
P
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Pric
e Le
vel
Real Domestic Output, GDPYfe
AS
AD
AS/AD: Recession
EquilibriumReal Output
ASLR
Long Run Aggregate Supply (Full Employment)
Y
P
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Pric
e Le
vel
Real Domestic Output, GDP
AS
AD
AS/AD: Inflation: Beyond Full Employment
EquilibriumReal Output
ASLR
Long Run Aggregate Supply (Full Employment)
Y f Y 1
P
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Pric
e Le
vel
Real Domestic Output, GDP
ASAD1
INCREASES IN AD: DEMAND-PULL INFLATION
P2
P1
AD2
Y* Y1
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Pric
e Le
vel
Real Domestic Output, GDP
AS1
AD1
DECREASES IN AS: COST-PUSH INFLATION
P2
Y 1Y 2
AS2
P1
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AGGREGATE SUPPLY / AGGREGATE DEMAND
SHOWS: • National Output: (Real GDP)• Employment and Unemployment• Price Level
Aggregate Demand CurveDown Sloping Due To:
• Real-Balances Effect• Interest-Rate Effect• Foreign Purchases Effect
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NO
MIN
AL
inte
res
t ra
te, i
Quantity of Money
Dm
Sm
THE MONEY MARKETShift the Supply curve (always vertical) when FED changes the money supply to change nominal interest rates!
i
•If Nominal GDP Increases, Transactions Demand increases, and Dm Curve Shifts to the right.
•If Asset Demand for money increases, Dm Curve shifts to right
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Real domestic output, GDP
Dm
InvestmentDemand Graph
rate
of
inte
rest
, i
10
8
6
0
Qty. of Money Amount of investment, I
MONETARY POLICY AND EQUILIBRIUM GDPSm1
AS
AD1(I=$15)
P1
10
8
6
0
Sm2
AD3(I=$25)
P2
If the Money SupplyIncreases to Stimulatethe Economy…Interest Rate DecreasesInvestment IncreasesAD & GDP Increases with slight inflation
Pri
ce le
vel
AD2(I=$20)
P3
Sm3
Increasing money supply continues the growth – but, watch Price Level.
ID
rate
of
inte
res
t, i
Money Market
Graph
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Re
al I
nte
res
t R
ate
, r
Quantity of Loanable Funds
LOANABLE FUNDS MARKET
r
D
Q
S
This graph shows how the supply and demand for loanable funds affects real interest rates!
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Loanable Funds Market Graph(Long-Term Interest Rates)
What changes Supply:
1. Increase in Household savings
2. Increase in Gov’t savings
3. Increase in Business savings
4. Increase in FINANCIAL investments
5. Increase in Foreigners’ savings
What changes Demand: 1. Increase in Household
borrowing2. Increase in business
Investment3. Increase in Foreign
borrowing4. Increase in Government
borrowing (When the gov’t has a budget deficit!) = (the crowding -out effect)
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The Market for Yen
Quantity of Yen
Yen
/Dol
lar
0
e*
Qe
Sy
Dy
THE FOREIGN EXCHANGE MARKET
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Dy
SyY
en/D
olla
r
Quantity of Yen
3
2
1
Dollardepreciates
Dollarappreciates
The Market for Yen
THE FOREIGN EXCHANGE MARKET
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An
nu
al r
ate
of in
flat
ion
(per
cen
t)
Unemployment rate (percent)
7
6
5
4
3
2
1
0
1 2 3 4 5 6 7
As inflation declines...
THE PHILLIPS CURVE CONCEPT
unemploymentincreases
And vice versa!
SRPC
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An
nu
al r
ate
of in
flat
ion
(per
cen
t)
Unemployment rate (percent)
7
6
5
4
3
2
1
0
1 2 3 4 5 6 7
THE PHILLIPS CURVE CONCEPT
SRPC 1
LRPC = Is the naturalRate of Unemployment
SRPC 2
With Stagflation, Shift SRPC to the right
With AD shift, move along existing SRPC
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Phillips Curve
• Short run trade-off between inflation and unemployment.
• In the Long Run there is no trade off. The long run Phillips curve is Vertical!
• Stagflation (an increase in Unemployment and inflation) or an Aggregate Supply Shock will shift the SRPC to the right.
• Decreases in Inflation and Unemployment will shift the SRPC to the left. (and increase in AS would cause this)
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TWO WAYS TO SHOW ECONOMIC GROWTH
A
B
C
D
Ca
pit
al G
oo
ds
Consumer Goods
Pri
ce
Lev
el
Real GDP
ASLR1 ASLR2
Q1 Q2
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Causes of Economic Growth
1. Increased investments in Capital Stock.
2. Increased investments in Human Capital (education, training) and increases in quantity of human resources
3. New Technology leading to increased productivity
4. Increase in quantity and quality of natural resources
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BUSINESSES HOUSEHOLDS
RESOURCES INPUTS
$ COSTS $ INCOMES
PRODUCTMARKET
GOODS &SERVICES
GOODS &SERVICES
$ CONSUMPTION$ REVENUE
GOVERNMENT
RESOURCEMARKET
Circular Flow Model