1.3 Market failure Flashcards
what is market failure?
an inefficient distribution of goods and services in a free market
what are externalities?
spill over of production or consumption for which no appropriate compensation is payed to one (or more) of the third parties involved
what goods cause negative externalities?
demand goods, demerit goods are always over produced and over consumed
why are externalites not reflected in the market price?
they lie outside the initial market transaction
what are private costs?
the costs faced by the producer or consumer directly involved in a transaction (to the firm)
what are external costs?
the costs imposed on third parties as a result of a transaction they are not directly involved
what are social costs?
private costs+external costs (total cost to society)
when do external costs occur?
when the activity of one agent has a effect on the wellbeing of a third party
who do external costs damage?
third parties, but the consumer and producer don’t have to pay, meaning that output will be too high
- production externalities cause the market price to be too low
Marginal private cost?(MPC)
cost to the producing firm of producing an additional unit of output or costs to an individual of any economic action
Marginal social cost?(MSC)
total cost to society of producing an extra unit of output. MSC = MPC + MEC
Marginal external cost?(MEC)
cost to third parties from the production of an additional unit of output
when explaining why’s something’s a public or private good what do you need to do?
have a point for why its
- non rival
- non excludable
separately to get two marks
examples of negative externalities of production?
- air pollution
- pollution from fertilisers
- industrial waste
- noise pollution
- methane emissions
how do you draw a diagram to show negative externalities?
if there are negative externalities we must add the external costs to the firms supply curve,MPC curve to find the MSC
y axis:quantity
x axis:cost
line downwards:MPB
line upwards (top):MSC
line upwards (below):MPC
triangle between MSC AND MPC is the welfare lost
how can you find the socially optimum point firms should be operating at?
the point where the MPB meets MSC
why do negative externalities cause market failure?
- extra socks not included in price
- price too low
- produces too much of that harmful product
- welfare lost
what can be done to help solve negative externalities?
- increase taxes
- create stricter policies
what do merit goods create?
positive externalities (always under produced and consumed) and social benefits from external benefits and private benefits
Marginal private benefit?(MPB)
benefit to the consumer of consuming an additional unit of output
Marginal external benefit (MEB):
benefit to third parties from the consumption of an additional unit of output
how do you draw a diagram to show positive externalities?
y axis:quantity
x axis:cost/benefit
line downward (above):MSB
line downward (below):MPB
line upwards:MPC=MSC
the triangle between MSB and MPB is the welfare gain
how does the positive externalities show market failure?
- extra benefit not included in price
- price too low
- consumes too little of beneficial thing
- welfare gain
examples of positive externalities?
- NHS
- Public libraries / community spaces
- Museums and Galleries
- Free school meals
- Education