4.1.8 Market Mechanism, Market Failure and Government Intervention in Markets Flashcards
rationing function of price
scarce resources, price rises due to excess demand, the price then discourages demand and rations resources
incentive function of price
encourages a change in behaviour from producer or consumer, a high price suggests firms should supply more as it is more profitable
signalling function of price
price acts as a signal to consumers and new producers, shows where resources are needed, high price encourages firms to supply more, but also signals consumers to ration demand
advantages of the price mechanism
- impersonal way of allocating resources
- consumer gains soveirgenty
disadvantages of price mechanism
- does not consider inequality
- underprovision of merit and public goods
when does market failure occur
when there’s a misallocation of resources
misallocation of resources
when resources are not allocated to the best interests of society
market failure- externality
cost or benefit a third party recieves from an economic transaction outside market mechanism
market failure- underprovision of public goods
Public goods are non-excludable and non-rival, and they are underprovided in
a free market because of the free-rider problem.
market failure- information gaps
It is assumed that consumers and producers have perfect information when
making economic decisions. However, this is rarely the case, and this
imperfect information leads to a misallocation of resources.
market failure- monopolies
consumer has very little choice where to buy the goods and services
offered by a monopoly, they are often overcharged. This leads to the underconsumption of the good or service, and therefore there is a misallocation of
resources, since consumer needs and wants are not fully met.
market failure- inequality
There is an unequitable distribution in income and wealth. This can lead to negative externalities, such as social unrest.
complete market failure
occurs when there is a missing market. The market does not
supply the products at all.
partial market failure
occurs when the market produces a good, but it is the wrong
quantity or the wrong price. Resources are misallocated where there is partial
market failure
public goods
missing from the free market, but offer benefits to society eg street lights
non excludable
non rival
non excludable
by consuming the good, someone else is not
prevented from consuming the good as well
non rival
benefit other people get from the good does not diminish if more people
consume the good.
free rider problem
people who do not pay for the good still receive benefits
from it, in the same way people who pay for the good do. This is why public
goods are underprovided by the private sector: they do not make a profit
from providing the good since consumers do not see a reason to pay for the
good, if they still receive the benefit without paying.
why are public goods underprovided
it is difficult to measure the
value consumers get from public goods, so it is hard to put a price on the
good. Consumers will undervalue the benefit, so they can pay less, whilst
producers will overvalue, so they can charge more.
private goods
rival
excludable
quasi public goods
characteristics of both public and private
goods. They are partially provided by the free market. For example, roads are
semi-excludable, through tolls and they are semi-non-rival, because
consumers can benefit from the road whilst other consumers are using it
(unless it is rush hour).
tragedy of the commons
The tragedy of the commons refers how individuals prioritise personal gain
over the well-being of society.
When resources are held in common, it means that no one owns the
resource, but everyone can access it.
For example, no one owns the air, but everyone can use it. This unlimited use
leads to the negative externality of air pollution. This is a market failure that
results from common access.
externality
the cost or benefit a third party receives from an economic
transaction outside of the market mechanism. In other words, it is the spillover effect of the production or consumption of a good or service.
negative externalities
caused by demerit goods. These are associated
with information failure, since consumers are not aware of the long run
implications of consuming the good, and they are usually overprovided. For
example, cigarettes and alcohol are demerit goods. The negative externality
to third parties of consuming cigarettes is second-hand smoke or passive
smoking.