Section 13 Flashcards
Externality
An external benefit or cost that is enjoyed or imposed on a third party other than the buyer or seller of the good.
Market Failure
When the market outcome differs from the outcome that society considers optimal.
Negative Externality
AKA - Supply-side market failure.
Cost imposed on a third party not involved in the production or consumption of the good.
The market over provides the good.
Pollution, drunks, etc.
Marginal Private Costs
Marginal cost of producing the good.
Marginal Social Costs
Marginal private cost and externality costs.
Tragedy of the Commons
When individuals only account for private marginal costs and fail to account for the impact of their actions on others.
Positive Externalities
AKA - Demand-side market failure.
External benefit enjoyed by a third party other than the buyer or seller of the good.
Market under produces.
Education, immunizations.
Command-and-control
Legislation limiting the amount of the activity along with regulatory bodies to monitor the behavior of the industry.
Are inefficient.
Increase private marginal cost and introduce limits.
Pigouvian Tax
When you pay a tax equal to the negative externality. Decreases the equilibrium quantity and increase the price of the good. Less is produced that would cover the negative externality.
Pigouvian Subsidy
When you pay a subsidy equal to the amount of the positive externality. Encourages the production and consumption, increasing demand. Shifts the supply curve, producing more goods.
Pell grants, school loans, etc.
Tradable Permits
Allow firms to product a certain amount of pollution, firms can use, buy, sell those permits.
Coase Theorem
Efficient solutions can be found to externalities if:
- Transaction costs are low
- Property rights are assigned to one of the parties
- They are allowed to negotiate.
Properties of Private Goods
Rival: Consumption by one person prevents another from consuming it.
Excludable: Those who don’t pay for the good can’t consume it.
Divisible: Production of the goods can be divided among those who are consuming it.
Shoes, tacos.
Calculating Private Goods
Sum up all individual demands - horizontal.
Properties of Public Goods
Non-rival: One person consumption does not diminish it for another person.
Non-excludable: Regardless if you pay for it, you can still enjoy it.
Non-divisible: We can’t divide it up among everyone.
Military, light houses.