4) Inflation 2 - MB Flashcards
Define cost push inflation
Inflation initiated by an increase in the costs faced by firms, arising in the supply size of the economy
Define demand-pull inflation
Inflation initiated by an increase in aggregate demand
Define money stock
The quantity of money in the economy
When does inflation occur?
When there is a rise in the general price level
How can we model changes in the price level?
With the AD/AS model
A… increase in the price level is different to a… in the price level over a long period of time
- one off
- sustained rise
What do one off change in the price level not suggest?
Do not suggest that inflation will persist in the long run
When does persistent inflation take place?
Can take place only when the money stock grows faster than real output
Analyse a leftward shift in SRAS
Shift from SRAS0 to SRAS1 has occurred, perhaps due to an increase in production costs caused by an increase in the price of oil. This leads to an increase in the price level from P0 to P1 and real GDP falls from Y0 to Y1. (This could be one off and not inflation)
Analyse a rightward shift in AD
A rightward shift in AD has occurred from AD0 to AD1, perhaps due to an increase in consumer expenditure. Investment would also increase AS and overall impact is unclear. As Aggregate demand is already on the vertical section of the AS curve, and the economy is already at full employment (YFE), the increase in the price level without also increasing economic growth
If money stock grows faster than output what happens to purchasing power for firms and households?
Firms and households have excess cash; for a given price level they have more purchasing power
What happens to AD if the money stock grows faster than output?
Firms and households increase spending, shifting AD right
Why does AD also further increase if the money stock grows faster than output?
Firms and households save , lowering interest rates, further increasing AD
AD shifts right due to money stock growing faster than output, what does this cause for the price level?
It increases the price level back to the full employment equilibrium
What happens if money supply continues to increase?
The process repeats, with prices rising persistently