Midterm 2 Study Guide Flashcards
externality
the uncompensated impact of a person’s actions on the well-being of a bystander
negative externality
markets produce a larger quantity than is socially desirable (social cost curve lies above supply curve), so governments internalize the externality by taxing goods
positive externality
markets produce a smaller quantity than is socially desirable (social-value curve lies above demand curve), so governments subsidize goods
command-and-control policies
regulations that directly seek to influence behavior; however, firms conceal adverse effects, exaggerate costs of regulation, and have no incentive to reduce below regulated levels
market-based policies
response to externality that provides incentives so that private decision makers choose to solve the problem on their own, such as corrective taxes and tradable permits
corrective taxes
policy designed to tax the right to engage in a negative externality; the higher the tax, the larger the reduction in negative externality – ideally, the tax is equal to the social cost
Canada’s Pigovian tax
Canada has increased its tax on carbon emissions from $20 CA / ton in 2019 to $50 CA / ton in 2022; prices on main sources of carbon increase, so fewer consumers buy them
tradable permits
form of taxation between firms where firms with lower levels of a negative externality (ex. pollution) have permits to sell to firms with higher levels
Coase theorem
if private parties can bargain without cost over the allocation of resources, they can solve the problem of externalities on their own, regardless of the initial distribution of rights; reasons for failure include transaction costs, bargaining breakdowns, and bargaining coordination difficulty
types of goods
people can be prevented from using excludable goods; a person’s use of a unit of a rival in consumption good reduces another person’s ability to use it
private goods
goods that are excludable and rival in consumption (ex. ice cream cones)
public goods
goods that are neither excludable nor rival in consumption (ex. tornado siren)
common resources
goods that are rival in consumption but are not excludable (ex. clean air and water, congested roads, wildlife)
club goods
goods that are excludable but not rival in consumption (ex. satellite TV)
free-rider problem
people receive the benefit of many public goods without paying for them
Tragedy of the Commons
a common resource is used more than is desirable from the standpoint of society as a whole; governments tax/regulate usage or turn them into private goods
Tuvalu and climate change
due to climate change, Tuvalu is experiencing increasing storms and land mass loss; struck a deal with Australia so that 280 people move to Australia per year (40 years for entire population) and Tuvalu receives assistance after natural disasters, but Australia does not have to restrict fossil fuel exports and must approve defense deals
Prisoner’s Dilemma
a situation where individual decision-makers have an incentive to defect as opposed to cooperate and create a less optimal outcome for the entire group
shadow of the future
– in a single interaction, both individuals have no incentive to cooperate and defect;
– in finite interactions, both cooperate until the penultimate interaction, then anticipate defection and thus defect;
– in indefinite interactions, cooperation can emerge
costs of signals
actions taken in the prisoner’s dilemma must back up verbally sent signals; signals incur costs through actions
Tit-for-Tat
strategy for the prisoner’s dilemma in which an individual initially cooperates to prevent unnecessary trouble and then repeats other actors’ decisions – retaliates to discourage defection and forgive to restore cooperation
reputation
state reputations for lending are developed via repeat play with incomplete information and political change
lemon
debtors who default in both good and bad economic times
fair-weather
debtors who repay in good times but not in bad times