2.3 - aggregate supply Flashcards
2.3.1 [characteristics of AS]
what is aggregate supply?
-the total supply of all goods and services available in an economy
what is a supply side?
-referring to the ability of producers to produce goods and services and , hence, output [GDP]
SRAS?
-total available supply in the short run
2.3.2 [short run AS]
what 3 thing influence SRAS?
1- changes in cost of raw materials and energy
2-changes in exchange rates
3- changes in tax rates
increase in all 3 factors?
1 - cause left shift in AS
2- £ depreciates so import costs increase = left shift
3 - SRAS shifts left
2.3.3 [LRAS]
what direction is LRAS?
-vertical
what factors affect LRAS?
-technological advances
-changes in relative productivity
-changes in education and skills
-changes in gov regulation
-demographic changes
-competition policy
what is LRAS influenced by?
-by a change in productive capacity of an economy
what is productive capacity changed by?
-changes to the quality or quantity of the factors of production
classical view of LRAS?
-believe LRAS is perfectly inelastic at a point of full employment of all available resources
-this point corresponds to the maximum possible output on a PPF
what do classical economist believe will happen in the long run?
-an economy will always return to the full employment level of output
why may there be short run output gaps in the economy?
-during extreme periods of economic growth, an inflationary gap can develop –> in the long run this will self correct and return to the long run level of output, but at a higher average price level
Keynesian LRAS view?
-supply is elastic at lower levels of output as there is a lot of spare production capacity in the economy
-supply is perfectly inelastic at full employment of all available resources –> the closer the economy is to this point, the more inflation will occur as firms compete for scarce resources
Keynesians; self correcting economy
-believe economy will not self correct
–they believe the gov should increase expenditure to shift AD and change the ‘negative animal spirits’ in the economy
Keynisian curve LRAS?
-low output = high unemployment and low confidence
-stops further investment and reduces further consumption