1.3 Flashcards
(72 cards)
what are movements along the demand curve?
a change in the quantity demanded caused by price
what causes shifts in the demand curve? PIRATES
population
income
related/complement goods
advertising
tastes and fashions
expectations
seasons
what is effective demand?
the willingness and ability to buy
what is consumer sovereignty?
when consumers decide how resources are used as they decide what to buy
what is the invisible hand?
a greater demand leading to an incentive for firms to produce more, in order to meet that demand
what is ceteris paribus?
other things being equal, assuming other variables remain unchanged
what is supply?
the amount offered for sale at each given price level
what causes shifts in supply? CLTTC
costs of production
lack of materials
technology
tax and subsidies
change in objectives
what is a subsidy?
a grant from the government to a firm to increase supply
how do you calculate total cost?
size of subsidy x quantity sold
what is the market equilibrium price?
where demand equals supply aka the market clearing price all buyers and sellers are happy with the price therefore the market can be cleared
what needs to happen when there is excess of supply and why?
need to lower prices as it is above the equilibrium price
what needs to happen when there is excess of demand and why?
need to increase prices as it is below the equilibrium price
what do market forces always do?
push to equilibrium
what does a shift in demand mean for the supply curve?
a movement along
what does a shift in supply mean for the demand curve?
a movement along
what are limitations of price determination?
it only looks at competitive markets
ceteris paribus: in the real economy other variables change too
information tends to be asymmetric so consumers don’t have full information regarding products
what is the fallacy of composition?
when an economist infers that something is true for the whole economy from information derived from a part of it
what is the price mechanism?
the way decisions of consumers and firms interact to determine the allocation of scarce resources between competing uses
what are the 3 functions the price mechanism plays in a market?
signalling
incentive
rationing
what is the signalling function?
when price changes send contrasting messages to consumers/producers about whether to enter/leave a market
what do rising prices mean in regards to the signalling function?
they give a negative message to consumers to leave while sending producers a positive message to enter
what do falling prices mean in regards to the signalling function?
they give a positive message to consumers to enter while sending producers a negative message to leave
what is the incentive function?
when higher prices provide an incentive to existing producers to supply more because they provide the possibility of more revenue and increased profits