Economics 2.8 Flashcards
externalities
external costs/benefits to third parties when a good/service is produced or consumed. an externality arises when an economic activity imposes costs/creates benefits on third parties for which they are not compensated/they don’t pay for
common pool resources
a diverse group of natural resources that are non-excludable, but their use is rivalrous, for example, fisheries
socially optimum output
this occurs where there is allocative efficiency, or where the MSC of producing a good is equal to the MSB of the good to society. Alternatively, it occurs where the marginal cost of producing a good (including any external costs) is equal to the price that is charged to consumers (P = MC for the last unit produced)
positive externalities of production
the beneficial effects that are enjoyed by third parties whose interests are not accounted for when a good/service is produced, therefore they do not pay for the benefits they receive
positive externalities of consumption
the beneficial effects that are enjoyed by third parties whose interests are not accounted for a when a good/service is consumed, therefore they do not pay for the benefits they receive
welfare loss
a loss of a part of social surplus (consumer plus producer surplus) that occurs when there is market failure so that MSB are not equal to MPB
merit goods
goods/services considered to be beneficial for people that are under-provided by the market –> these are under-consumed, mainly due to positive consumption externalities
negative externalities of production
negative effects suffered by a third party whose interests are not considered when a good/service is produced, so third party is NOT COMPENSATED
negative externalities of consumption
negative effects suffered by a third party whose interests are not considered when a good/service is consumed, so the third party are therefore not compensated
demerit goods
goods/services that not only harm individuals who consume these but also society at large, and these tend to be overconsumed. Usually they are due to negative consumption externalities.
tragedy of commons
a situation with common pool resources: individual users act independently, according to their own self-interest; they go against the common good of all users by depleting or spoiling that resource through their collective action
rivalrous
goods/services are considered to be rivalrous when the consumption by one person/group of people reduces the amount available for others
non-excludable
a characteristic of a good/service/resource where it is IMPOSSIBLE to prevent a person/persons from using it
pigouvian taxes
an indirect tax that is imposed to eliminate the external costs of production/consumption
carbon taxes
taxes levied on the carbon content of fuel (type of pigouvian tax)