supply Flashcards
increase in price?
extension in supply so quantity supplied increases, moving up supply curve
decrease in price
contraction in supply so quantity supplied decreases
price elasticity of supply
responsiveness of quantity supplied to a change in price
formula for pes
percentage change in quantity supplied/ percentage change in price
values of pes negative or positive
always positive
qs increases with increase in price, +/+ is positive
qs decreases with decrease in price, -/- is positive
values of pes- elasticity
bigger than 1 is elastic, quantity supplied is bigger than % change in price, more responsive to change in price
less than 1, inelastic, quantity supplied less than change in price, e.g. production costs high so less supplied, qs lower & price higher, less responsive to changes in price
closer to 0- more inelastic
pes of 1 is unitary elastic, % change in price leads to % change in quantity supplied of same size
elastic supply curve
When PES is between 1 and ∞. Elastic supply is very responsive to changes in price.
An elastic supply curve has a flatter, more gentle slope because a change along the price axis will lead to a larger % change along the quantity axis.
inelastic supply curve
When PES is between 0 and 1. Inelastic supply is unresponsive to changes in price.
An inelastic supply curve has a steep slope because a change along the price axis will lead to a smaller % change along the quantity axis.
unitary elastic supply cruve
pes 1
#A unitary elastic supply curve must start from the origin.
factors influencing pes
spare capacity
availability of production
state of economy
stock and perishability
time period
TEASS
spare capacity influencing pes
spare capacity is what is not being used
if more spare capacity, is prices rise, firms can use up spare capacity and increase output to take advantage of higher price, thus companies are more responsive to changes in price= supply more elastic, can increase quantity supplied by larger percentage as there is still more to use up
if little spare capacity, harder to increase output by much, cannot respond much to changes in price thus inelastic- they cannot increase their supply
availability of factors of production influencing pes
how easy it is to find land labour capital and enterprise.
- availability of resources
- when it is difficult to get factors of production, difficult to find resources for it so supply cannot be increased, supply unresponsive to price thus inelastic supply
-if easy to find resources, if prices rise, supply can be increased easily
very available is elastic
less availability is inelastic
state of economy influencing pes
price of goods increasing, producers looking to maximise profit so higher price gives more incentive to sell, expand size of business, higher more workers
bad state of economy, if workers are unemployed it is easy to find workers looking for vacancies,
if areas are vacant, easier to find land to build on= suggesting elastic supply
good state of economy- harder to increase quantity supplied, employees etc less available as already occuipied, struggling to increase production therefore inelastic supply
stock piles and perishability influencing pes
stock pile- stock of goods held in reserves
(out of date quickly= perishable)
more easier to stockpile= more elastic, easily stockpiled so if prices rise, producers can react quickly, selling the goods they have in storage , can increase quantity supplied by larger percentage so elastic supply
harder to stockpile if more perishable so if prices rise, larger quantities cannot be stockpiled for longer periods, producers cannot respond as quickly- they have to produce more from scratch taking a longer time. producers unable to respond much thus inelastic supply
time influencing pes
short run is when at least one factor of production is fixed, cannot increase them in short run- not enough time - quantity supplied can only be increased by small % as theyre limited by fixed FOPs e.g. not enough space or machinery- factory and machines are fixed, hard to change quantity supplied thus inelastic supply
long run is when all factors of production can be changed , allows time for it to be changed - so low elasticity of supply
- time to build more factory space and more time to build more- in long run supply more elastic, more time to increase FOPs so they can respond more, supply is more elastic
(e.g evident when looking at agricultural producers. growing crops is harder to do in short run despite increase in price- inelastic but in long run: enough time to grow thus they can respond to changes in price )