1.5.1 Market failure and externalities Flashcards
Private costs
Cost of the individual taking the economic action
Private benefits
a benefit for an individual as a result of an economic action they have taken
External costs
Cost of someone elses economic action borne by a third party
External benefits
A benefit for a third party as a result of an economic action taken by someone else
externalities
Positive or negative effects on third parties
Social costs
Total sum of private and external costs for a particular economic action
Social benefits
Total sum of the private and external benefits for a particular economic action
Positive externalities
External benefits experienced by third parties but paid for by someone else
Negative externalities
External costs that have a detrimental effect on the lives of people who neither bought or sold the product
Allocation of resources
Refers to the way resources are used and distributed within the economic system
Market failure
(why does it occur)
Occurs whenever social costs exceed social benefits → negative externalities.
- Resources are not being allocated efficiently enough because consumers do not pay for the external costs associated with the G/S they consume but someone else
Under consumption
Socially desirable products are too expensive for everyone to cover the costs themselves (healthcare, education etc)
Over consumption
- social costs exceed private costs (petrol and diesel) → if external costs and private costs are experienced by the consumer, the private costs = social costs and demand would go down
- if consumer has to deal with the cost of buying it and the third party effects, then they will not want it
a public good
A public good is not provided by businesses in a free market because they would not be able to charge people effectively to use them
- Non rival: if one person consumes a good, another is not stopped from using that same good
- Non-excludable: once a good is provided it is impossible to stop another person from using the same good even if they haven’t paid
- This causes the ‘free-rider effect’
a merit good
- A merit good is one we tend to under-consume/under-produce because we don’t realise how good it is for us, as some sort of information breakdown exists
- The government often provides merit goods so that we dont have to pay for them, because they are more aware of the benefits we bring than we are
why is education a merit good
- At the time school is not fully appreciated, or people leave school at 16, forfeiting higher education
- This is because people want to earn a living as they do not like education, or it is a necessity (women and girls)
It is good because:
- A better education brings more skilled workers
- Society becomes better as a more educated society is more cohesive and tolerant → people care more about their health, diet and complete less crime
why is healthcare a merit good
- People cannot always access education do no having enoug time and their lifestyle
- They also do not have the money for treatment if it not free (america)
It is good because:
- Gov: everyone needs to access healthcare to be healthy and contribute to society → raises GPD and living standards
- The health of the person increases herd immunity → people do not miss work and affect the economy
demerit goods
(how does the government try to reduce consumption of them)
- Demerit goods are goods that we tend to overconsume/overproduce because we dont realise how bad it is for us, as a sort of information breakdown exists.
- The government discourages consumption of them through taxes, bans and advertising campaigns, because they are more aware of the disadvantages than we are
why is alcohol a demerit good
- Individual and society is affected
- Violent crime, domestic abuse, family breakdown
- Increased health costs on the tax payer
it is limited
- Age limits
- Taxes
- Licenced premises
- Alcohol regulation
- education
why is nicotine a demerit good
- Health issues, passive smoking
- People dont consider the long term effect
it is limited
- Cannot smoke on school premises
- Have to smoke in an 50% open shelter
- Heavily taxed
- Packets are most unnatractive colour to young people to deter
vaping
- vaping → government did not regulate and made it attractive to young people (flavours): - -GOVERNMENT FAILURE
- Merit: for people who smoke cigarettes and are attempting to stop
- People who dont smoke nicotine has a negative health impact
tragedy of the commons
(what kind of good is it)
- If there is a common resource available to all, it becomes overused and useless
- This is an example of a rival good, as its use means it is not available to others
- Individual behaviour has a negative impact on others to the extent we would all be better off if - that behaviour was curtailed, but individuals are better off continuing with what they are doing for themselves
- Eg road space, exploitation of NR resources, fishing and beach uses
positive externalities
Positive externalities are acceptable.
- These occur when there is some gain in satisfaction for a third party, who is neither the buyer nor the seller of the product.
- The aim is to increase social benefit as merit goods - which cause these benefits - are under-consumed
Social benefit > private benefit = positive externalities
The difference between the MPB and MSB = external benefit
Supply has been extended → more is being produced/consumed which is good as it is a merit good
negative externalities
However, negative externalities are regarded as being undesirable but that does not mean there is a case for banning the product that causes it.
Social cost > private cost = negative externalities
When externalities occur, there is a misallocation of resources as the wrong group of consumers are paying for the cost. This causes market failure. This means the government needs to intervene and provide policies to help with this.
D = MPD (marginal private benefit) → slopes downards showing diminishing marginal utility (more used less valued)
S = MPC (marginal private cost)
MSC = marginal social cost
Therefore the cost between MPC and MSC = external cost
how to internalise external costs
(measuring externalities problems)
- at the FREE MARKET EQUILIBRIUM, the external cost is NOT included in the consumers private cost, and results in negative externalities (spillover on third parties)
- At the SOCIALLY OPTIMAL EQUILIBRIUM, the external cost IS included in the consumers private cost
- Here, the price of the good has increased to a socially optimal level, so the quantity demanded has decreased to one too, causing demand to contract until an SOE is reached, where less people are using the demerit good
- The externality is now INTERNALISED, so the right group of people are paying for the cost
Private costs and benefits are usually qualitative (expenses) and are easier to measure, but external costs and benefits are usually qualitative and harder to quantify as a whole (pollution, social problems)
