spending and output in the short run part ii n.
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SPENDING AND OUTPUT IN THE SHORT RUN PART II. Chapter 11. PAE and Policy Changes: Fixed Price Model. Recall. PAE = C + I P + G + NX. Assumptions. 1) π e = 0 2) r = i. Types of Policy. Fiscal Policy 1) G 2) T Monetary Policy—M.  G---Fixed Price Model.

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Presentation Transcript
recall
Recall

PAE = C + IP + G + NX

assumptions
Assumptions

1) πe= 0

2) r = i

types of policy
Types of Policy

Fiscal Policy

1) G

2) T

Monetary Policy—M

g fixed price model
 G---Fixed Price Model

 G upward shift in PAE

t fixed price model
 T---Fixed Price Model

T  (Y – T)  C  PAE

 PAE shifts upward

m fixed price model
 M—Fixed Price Model

 M  MS shifts outward i

output gaps
OUTPUT GAPS

Y*=potential (full-employment) output (Y)

= the amount of Y that an economy can

produce when using resources at

normal rates.

slide18

In 2002, Y* was defined as the level of Y when the unemployment rate is around 5.2%.

active fiscal policy vs automatic stabilizers
Active Fiscal Policy vs. Automatic Stabilizers

Active Fiscal Policy—Actions taken on purpose. Laws must be changed.

Automatic Stabilizers—provisions in the law that imply automatic increases in government spending or decreases in taxes when real output (income) declines.

examples
EXAMPLES

1) Income tax—when incomes fall, tax receipts fall; when incomes rise, tax receipts rise.

2) Transfer payments—increase when incomes fall and fall when incomes increase. Example: unemployment compensation.

lags in active fiscal policy
Lags in Active Fiscal Policy

1) Inside lag

a) Recognition lag—the time needed to realize that action is needed.—3 months

b) Action lag—the time needed to make a change in policy.—1 – 15 months

slide31

2) Outside lag—the time needed for a policy change to have an impact on GDP.—1 – 3 months.

3) Total lag—inside lag + outside lag—

5 – 21 months.

lags in monetary policy
Lags in Monetary Policy

1) Inside lag

a) Recognition lag—3 months

b) Action lag— 0 months

2) Outside lag—1 - 20 months

3) Total lag—3 - 23 months.

market for bank loans
Market for Bank Loans
  • Demand for Bank Loans
  • Supply of Bank Loans
market for bank loans1
Market for Bank Loans
  • In a credit crunch, the supply of bank loans shifts inward. This increases the interest rate on bank loans.
slide38

The increase in the interest rate on bank loans reduces both C and IP .

  • PAE = C + IP + G + NX
  • The PAE function shifts downward.