SRAS/LRAS Flashcards
What is the long run?
Period in which nominal wages (&mother input prices) are fully responsive to changes in price level
What are nominal wages?
Current level
What are real wages?
Inflationary adjusted
What are the assumptions of the SRAS curve?
- initial price level is P1
- nominal wages have been established on the expectation that PL will persist
- PL is flexible both upward and downward
Why is the SRAS curve positively sloped?
Nominal wages stay constant as PL changes
Why is the LRAS curve a vertical curve?
Nominal wages eventually change by the same amount as the change in PL
What happens with a leftward shift of the SRAS?
In the LR workers discover that their real wages have declined because of increased PL
What happens with a rightward shift of SRAS?
Profits have fallen because PL decreases and wages don’t, this increases real wages
Where is equilibrium in the extended AD-AS model?
Intersection of AD, LRAS, & SRAS
What happens to the extended AD-AS model because of demand pull inflation?
- Short run: increase in AD1 to AD2 drives up PL and increases real output, investment spending and/or net exports increase. Demand pull inflation drives up PL & increases output.
- Long run: nominal wages rise and AS1 shifts left to AS2. Only PL rises
When does cost pull inflation occur?
When SRAS shifts leftward from AS1 to AS2
When does recession occur?
When AD shifts left from AD1 to AD2
What is stagflation?
- Combo of recession and inflation
- leftward shift of SRAS from EQUILIBRIUM
What does the Phillips curve show?
Cost-push inflation and the macro distinction between SR and LR
What is the basic idea of the Phillips curve?
- the larger the increase in AD, the higher the rate of inflation and the greater the increase in real GDP
- high inflation= low unemployment
- low inflation= high employment