supply Flashcards
what is supply
the quantity that firms are willing and able to produce in a given time at a given price
what is the law of supply
as prices rise, supply rises because less efficient firms can enter and firms are incentivised by profits
individual v market supply
individual supply is the amount that a single firm supplies but market supply is the output produced by all firms (summed together)
what is joint supply
joint supply is when an increase or decrease in supply of one good leads to an increase or decrease in supply of its byproduct e.g. beef and leather
what are the movements along the supply curve
a contraction in supply occurs when the prices fall so supply falls and an extension happens when prices rise so supply rises
what is ceteris parabus in terms of supply
when all other factors than price remain constant e.g. costs of production, supply increases with prices
conditions of supply
costs of production, joint supply, amount of firms in market, technology advancements, changes to labour productivity, indirect taxes and subsidies, speculation, regulation bureaucracy
what is price elasticity of supply
measures the responsiveness of supply to a change in price
formula for pes
% change in Qs/ % change in price
inelastic supply
a change in price leads to a less than proportional change in supply, pes of between 0 and 1, e.g. petrol. steep upwards slope
elastic supply
a change in price leads to a greater than proportional change in supply, pes is above 1, e.g designer clothing. flat upwards slope
factors affecting pes
time needed to extract and find, time of year, stockpiling/perishability, availability of spare capacity, ease of switching production processes
what is the price equilibrium
the price at which demand is equal to supply, there is no tendency for change
what is price disequilibrium
any other price, there is likely to be a further change or reaction from producers
what happens to change the price equilibrium
when demand or supply shifts left or right and there is no response from the other. for example if demand increases, in the short run supply will be inelastic and cant respond which will cause an upwards pressure on price and raise the equilibrium from p to p1