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Ability to pay principal
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idea that taxes should be levied on a person according to how well that person can shoulder the burden
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Absolute advantage
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ability to produce a good using fewer inputs than another producer
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Accounting profit
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total revanue minus total explicit cost
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Adverse selection
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tendency for the mix of unobserved attributes to become undesirable from the standpoint of an uninformed party
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Agent
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person who is performing act for another person called the principal
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Arrow's impossibility theorem
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math result showing that under certain conditions there is no scheme for aggregating individual preferences into valid set of social preferences
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Average fixed cost
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fixed cost divided by quantity output
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Average revenue
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total revenue divided by the quantity sold
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Average tax rate
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total taxes paid divided by total income
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Average total cost
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total cost divided by the quantity output
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Average variable cost
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variable cost divided by the quantity output
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Behavioral economics
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subfield of economics that integrates the insights of psychology
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Benefits principal
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idea that people should pay taxes based on the benefits they receive from government services
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Budget constraint
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limit of consumption bundles that a consumer can afford
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Business cycle
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fluctuations in economic activity such as employment and production
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Capital
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equipment and structures used to produce goods and services
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Cartel
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group of firms acting in unison
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Circular flow diagram
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visual model of the economy that shows how dollars flow thorugh markets among household firms
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Club goods
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goods that are excludable but not rivals in consumption
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Collusion
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agreement among firms in a market about quantities to produce or prices to change
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Common resources
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goods that are rivals in consumption but not excludable
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Comparative advantage
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ability to produce a good at lower opportunity cost than another product
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Competitive market
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market with many buyers and sellers trading identitical products so that each buyer and seller is a price taker
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Complement
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two goods for which an increase in the price of one leads to a decrease in the demand for the other
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Condorcet paradox
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failure of majority rule to produce transitive preferences for society
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Constant returns to scale
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property whereby long-run average total cost stays the same as the quantity of output changes
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Consumer surplus
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amount a buyer is willing to pay for a good minus the amount the buyer actually pays for it
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Corrective tax
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tax designed to induce private decision makers to take account of the social costs that arise from a negative externality
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Cost-benefit analysis
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study that compares the costs and benefits to society of providing a public good
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Cross-price elasticity of demand
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measure of how much the Q demanded of one good responds to a change in price of another; computed as % change in Q demanded for first good divided by % change in price of good
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Deadweight loss
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fall in total surplus that results from a market distortion (such as tax or monopoly)
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Demand curve
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graph of the relationship between the price of a good and Q demanded
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Demand schedule
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table that shows the relationship between the price of a good and Q demanded
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Diminishing marginal product
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property whereby the marginal product of an input declines as the quantity of input increases
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Diseconomies of scale
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property whereby long-run average total cost rises as the Q of output increases
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Dominant strategy
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strategy that is best for a player in a game regardless of the strategies chosen by the other players
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Economic profit
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total revenue minus total cost including bost explicit and implicit costs
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Economics
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study of how society manages its scarce resources
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Efficiency
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property of society getting the most it can from its scarce resources
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Efficient scale
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quantity of output that minimizes average total cost
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Elasticity
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measure of the responsiveness of Q demanded or Q supplied to one of its determinents
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Equality
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property of distributing aconomic prosperity uniformly among the members of society
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Equilibrium
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situation in which market price has reached the level at which Q supplied equals Q demanded
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Equilibrium price
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price that balances Q supplied and Q demanded
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Equilibrium quantity
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Q supplied and Q demanded at equilibrium price
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Excludability
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property of a good whereby a person can be prevented from using it
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Externality
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uncompensated impact of one person's actions on the well-being of a bystander
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Factors of production
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inputs used to produce goods and services
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Fixed cost
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costs that don't vary with Q output produced
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Free rider
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person who receives the benefit of a good but avoids paying for it
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Game theory
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study of how people behave in strategic situations
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Horizontal equity
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idea that taxpayers with similar abilities to pay taxes should pay the same amount
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Implicit cost
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input costs that do not require an outlay of money by the firm
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Incentive
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something that induces a person to act
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Income effect
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change in consumption that results when a price change moves the consumer to a higher or lower indifference curve
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Income elasticity of demand
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measure of how much the Q demanded of a good responds to a change in consumer's income, computed as % change in Q demanded divided by % change in income
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Indifference curve
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curve that shows consumption bundles that give the consumer the same level of satisfaction
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Inferior good
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good for which, other things are equal, and increase in income leads to a decrease in demand
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Inflation
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increase in overall level of prices in the economy
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Internalizing the externality
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altering incentives so that people take account of the external effects of their actions
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Law of demand
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claim that, other things equal, the Q demanded of a good falls when the price of the good rises
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Law of supply
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claims that, other things equal, the Q supplied of a good will rise when the price rises
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Law of supply and demand
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claim that the price of any good adjusts to brign the Q supplied and Q demanded into balance
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Lump-sum tax
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tax that is the same amount for every person
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Marginal cost
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increase in total cost that arises from an extra unit of production
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Marginal product
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increase in output that arises from an additional unit of input
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Marginal product of labor
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increase in the amount of output from an additional unit of labor
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Marginal rate of substitution
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rate at which a consumer is willing to trade one food for another
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Marginal revenue
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change in total revanue from an additional unit sold
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Marginal tax rate
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extra taxes paid on an additional dollar of income
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Market
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group of buyers and sellers of a particular good or service
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Market economy
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economy that allocates resources through the decentralized decisions of many firms and households as they interact in markets for goods and services
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Market failure
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a situation in which a market left on its own fails to allocate resources efficiently
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Market power
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ability of a single economic actor, or small group of actors, to have a substantial influence on market prices
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Median voter theorem
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mathematical result showing that if voters are choosing a point along a line and each voter wants the point closest to his most preferred point, then majority rule will pick the most preffered point of the median voter
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Microeconomics
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study of how households and firms make decisions and how they interact in markets
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Monopolistic competition
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market structure in which many firms sell products that are similar but not identical
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Monopoly
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firm that is the sole seller of a product without close substitutes
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Moral hazard
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tendency of a person who is imperfectly monitored to engage in dishonest or otherwise undesirable behavior
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Nash equilibrium
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a situation in which economic actors interacting with one another each choose their best strategy given the strategies that all the other actors have choosen
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Natural monopoly
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monopoly that arises because a single firm can supply a good or service to an entire market at a smaller cost than could two or more firms
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Normal good
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good for which, other things equal, an increase in income leads to an increase in demand
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Normative statements
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claims that attempt to prescribe how the world should be
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Oligopoly
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market structure un which only a few sellers offer similar or identical products
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Opportunity cost
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whatever must be given up to obtain some item
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perfect complements
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two goods with right-angle indifference curves
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Perfect substitutes
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two goods with straight line indifference curves
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Political economy
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study of government using the analytic methodsa of economics
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Positive statements
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claims that attempt to describe the world as it is
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Price ceiling
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legal maximum on the price at which a good can be sold
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Price discrimination
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business practice of selling the same good at different prices to different customers
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Price elasticity of demand
answer
measure of how much the Q demand of a good responds to change in the price of the good, computed as he % change in Q demanded divided by the % change in price
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Price elasticity of supply
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measure of how much the Q supplied of a good responds to change in the price of the good, computed as %change in Q supplied divided by the % change in price
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Price floor
answer
legal minimum on the price at which a good can be sold
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Principal
answer
person for whom another person, called the agent, is performing some act
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Private goods
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goods that are both excludable and rival in consumption
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Producer surplus
answer
amount a seller is paid for a good minus the seller's cost of providing it
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Production function
answer
relationship between the Q of inputs used to make a good and the Q of output of the good
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Production possibilities frontier
answer
graph that shows the combo of output that the economy can possibly produce given the available factors of production and the available production technology
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Profit
answer
total revanue minus total cost
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Progressive tax
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tax for which high income payers pay a larger fraction of their income than low-income payers
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Property rights
answer
ability of an individual to own and exercise control over scarce resources
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Proportional tax
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a tax which high income and low income payers pay the same fraction of income
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Public goods
answer
goods that are neither excludable nor rival in consumption
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Quantity demanded
answer
amount of good that buyers are willing and able to purchase
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Quantity supplied
answer
amount of a good sellers are willing and able to sell
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Regressive tax
answer
tax which high income payers pay a smaller fraction of their income than low-income payers
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Rivalry in consumption
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property of a good whereby one person's use diminishes other people's use
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Scarcity
answer
limited nature of resources
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Screening
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action taken by an uninformed party to induce informed party to reveal information
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Shortage
answer
situation in which Q demanded is higher than Q supplied
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Signaling
answer
action taken by informed party to reveal private information to an uninformed party
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Substitute
answer
2 goods for which an increase in price of one leads to and increase in demand of the other
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Substitution effect
answer
change in consumption that results when a price change moves the consumer along a given indifference curve to a point with a new marginal rate of substitution
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Sunk cost
answer
cost that has already been committed and cannot be recovered
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Supply curve
answer
graph of relationship between Q supplied and price
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Supply schedule
answer
table that shows the relationship between the price of a good and Q supplied
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Surplus
answer
situation in which Q supplied is greater than Q demand
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Tax incidence
answer
manner in which the burden of a tax is shared among participants in a market
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Total cost
answer
market value of inputs a firm uses in production
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Total revenue
answer
amount a firm receives for the sale of its output/amount paid by buyers and received by sellers of a good (Price times Q sold)
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Transaction costs
answer
cost that parties incur in the process of agreeing to and following through on a bargain
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Value of marginal product
answer
marginal product of an input times the price
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Variable cost
answer
cost that vary with the Q output
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Vertical equity
answer
idea that taxpayers with a greater ability to pay taxes should pay larger amounts
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Welfare economics
answer
study of how the allocation of resources affects economic well-being