MicroEconomics Final Exam Terms – Flashcards

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Absolute Advantage
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One person has an absolute advantage over another if he or she takes fewer hours to perform a task than another person
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Accounting Profit
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The difference between a firm's total revenue and its explicit costs
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Adverse Selection
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The pattern in which insurance tends to be purchased disproportionately by those who are most costly for companies to ensure
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Allocative Function of Price
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Changes in prices direct resources away from overcrowded markets and toward markets that are underserved
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Asymmetric Information
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Situations in which buyers and sellers and not equally well informed about the characteristics of good and services for sale in the marketplace
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Attainable Point
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Any combination of goods that can be produced using currently available resources
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Average Benefit
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Total benefit of undertaking n units of an activity divided by n
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Average Cost
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Total cost of undertaking n units of an activity divided by n
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Average Total Cost (ATC)
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Total cost divided by total output
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Average Variable Cost (AVC)
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Variable cost divided by total output
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Barrier to Entry
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Any force that prevents firms form entering a new market
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Basic Elements of a Game
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The players, the strategies available to each player, and the payoffs each player recieves for each possible combination of strategies
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Better-than-Fair Gamble
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A gamble whose expected value is positive
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Buyer's Reservation Price
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The largest dollar amound of the buyer would be willing to pay for a good
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Buyer's Surplus
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The difference between the buyer's reservation price and the price he or she actually pays
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Cartel
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A coalition of firms that agree to restrict output for the purpose of earning an economic profit
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Cash on the Table
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Economic metaphor for unexploited gain from exchange
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Change in Demand
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A shift of the entire demand curve
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Change in Supply
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A shift of the entire supply curve
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Change in the Quantity Demanded
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A movement along the demand curve that occurs in response to a change in price
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Change in the Quantity Supplied
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A movement along the supply curve that occurs in response to a change in price
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Coase Theorem
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If at no cost people can negotiate the purchase and sale of the right to perform activities that cuase externalities, they can always arrive at efficeint solutions to the problems caused by externalities
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Collective Good
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A good or service that, to at least some degree, is nonrival but excludable
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Commitment Device
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A way of changing incentives so as to make otherwise empty threats or promises credible
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Commitment Problem
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A situation in which people connot achieve their goals because of an inability to make credible threats or promises
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Comparitive Advantage
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One person has a comparitave advantage over another if his or her opportunity cost of performing a task is lower than the other person's opportunity cost
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Compensating Wage Differential
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A difference in the wage rate - negative or positive - that reflects the attractiveness of a job's working conditions
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Complements
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Two goods are complements in consumption if an increase in the price of one causes a leftward shift in the demand curve for the other (or if a decrease causes a rightward shift)
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Constant (or parameter)
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A quantity that is fixed in value
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Constant Returns to Scale
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A production process is said to have constant returns to scale if, when all inputs are changed by a given proportion, output changes by the same proportion
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Consumer Surplus
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The economic surplus gained by the buyers of a product as measured by the cumulative difference between their respective reservation prices and the price they actually paid
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Cost-plus Regulation
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A method of regulation under which the regulated firm is permitted to charge a price equal to its explicit costs of production plus a markup to cover the opporunity cost of resources provided by the firm's owners
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Costly-to-Fake Principle
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To communicate information credibly to a potential rival, a signal must be costly or difficult to fake
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Credible Promise
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A promise to take an action that is in the prmiser's interest to keep
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Credible Threat
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A threat to take an action that is in the threatener's interest to carry out
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Cross-Price Elasticity of Demand
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The percentage by which the quantity demanded of the first good changes in response to a 1% change in the price of the second
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Crowding Out
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Government borrowing that leads private firms to cancel planned investment projects because of higher interest rates
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Customer Discrimination
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The willingness of consumers to pay more for a product by members of a favored group, even if the quality of a product is unaffected
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Deadweight Loss
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The deadweight loss caused by a policy is the reduction in economic surplus that results from adoption of that policy
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Decision Tree (or Game Tree)
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A diagram that describes the possible moves in a game in sequence and lists the payoffs that correspond to each possible combination of moves
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Demand Curve
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A schedule or graph showing the quantity of a good that buyers with to buy at each price
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Dependent Variable
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A variable in an equation whose value is determined by the value taken by another variable in the equation
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Disappearing Political Discourse
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The theory that people who support a position may remain silent because speaking out would create a risk of being misunderstood
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Dominant Strategy
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One that yields a higher payoff no matter what the other players in a game choose
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Dominated Strategy
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Any other strategy available to a player who has a dominated strategy
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Earned-Income Tax Credit (EITC)
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A policy under which low income workers recieve credits on their federal income tax
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Economic Loss
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An economic profit that is less than zero
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Economic Profit
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The difference between a firm's total revenue and the sum of its explicit and implicit costs; also called excess profits
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Economic Rent
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That part of the payment for a factor of production that exceeds the owner's reservation price, the price below which the owner would not supply the factor
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Economic Surplus
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The economic surplus from takin gany action is the benefit of taking the action minus its cost
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Economics
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The study of how people make choices under conditions of scarcity and of the results of those choices for society
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Efficiency
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Condition that occurs when all goods and services are produced and consumed at their respective socially optimal levels
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Effiecient (Pareto-Efficient)
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A situation is efficient if no change is possible that will help some people without helping others
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Efficient Markets Hypothesis
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The theory that the current price of stock in a corporation reflects all relevant information about its current and future earnings prospects
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Efficient Point
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Any combination of goods for which currently available resources do not allow an increase in the production of one good without a reduction in the production of the order
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Elastic
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The demand for a good is elastic with respect to price if its price elasticity of demand is greater than 1
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Employer Discrimination
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An arbitrary preference by an employer for one group of workers over another
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Equation
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A mathematical expression that describes the relationship between two or more variables
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Equilibrium
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A balanced or unchanging situation in which all forces at work within a system are cancelled by others
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Equilibrium Price and Equilibrium Quantity
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The price and quantity of a good at the intersection of the supply and demand curves for the good
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Excess Demand (Shortage)
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The difference between the quantity supplied and the quantity demanded when the price of a good lies below the equilibrium price; buyers are dissatisfied when there is excess demand
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Excess Supply (Surplus)
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The difference between the quantity supplied and the quantity demanded when the price of a good exceeds the equilibrium price; sellers are dissatisfied when there is excess supply
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Expected Value of a Gamble
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The sum of the possible outcomes of the gamble multiplied by their respective probabilities
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Explicit Costs
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The actual payments a firm makes to its factors of production and other suppliers
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External Benefit (Positive Externality)
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A benefit of an activity received by people other than those who pursue the activity
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External Cost (Negative Externality)
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A cost of an activity that falls on people other than those who pursue the activity
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Externality
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An external cost or benefit of an activity
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Factor of Production
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An input used in the production of a good or service
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Fair Gamble
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A gamble whos expected value is zero
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First-Dollar Insurance Coverage
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Insurance that pays all expenses generated by the insured activity
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Fixed Cost
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A cost that does not vary with the level of an activity; the sum of all payments made to the firm's fixed factors of production
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Fixed Factor of Production
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An input whose quantity cannot be altered in the short run
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Free-Rider Problem
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An incentive problem i nwhich too little of a good or service is produced because nonpayers cannot be excluded from using it
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Head Tax
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A tax that collects the same amount from every taxpayer
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Health Maintenance Organization (HMO)
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A group of physicians that provides health services to individuals and families for a fixed annual fee
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Human Capital
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An amalgam of factors such as education, training, experience, intelligence, energy, work habits, trustworthiness, initiative, and others that affect the value of a worker's marginal product
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Human Capital Theory
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A theory of pay determination that says a worker's wage will be proportional to his or her stock of human capital
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Hurdle Method of Price Discrimination
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The practice by which a seller offers a discount to all buyers who overcome some obstacle
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Imperfectly Competitive Firm
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A firm that has at least some control over the market of its product
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Implicit Costs
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The opportunity costs of the resources supplied by the firm's owners
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Income Effect
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The change in teh quantity demanded of a good that results because a change in the price of a good changes the buyer's purchasing power
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Income Elasticity of Demand
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The percentage by which a good's quantity demanded changes in response to a 1 percent change in income
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Increasing Returns to Scale
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A production process is said to have increasing returns to scale if, when all inputs are changed by a given proportion, output changes by more than that proportion; also called economies of scale
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Independent Variable
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A variable in an equation whose value determines the value taken by another variable in the equation
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Inefficient Point
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Any combination of goods for which currently available resources enable an increase in the production of the other
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Inelastic
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The demand for a good is inelastic with respect to price if its price elasticity of demand is less than one
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Inferior Good
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A good whose demand curve shifts leftward when the incomes of buyers increase
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In-Kind Transfer
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A payment made not in the form of cash but in the form of a good or service
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Invisible Hand Theory
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Adam Smith's theory stating that the actions of independent, self-interested buyers and sellers will often result in the most efficient allocation of resources
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Labor Union
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A group of workers who bargain collectively with employers for better wages and working conditions
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Law of Demand
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People do less of what they want to do as the cost of doing it rises
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Law of Diminishing Marginal Utility
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The tendency for the additional utility gained from consuming an additional unit of a good to diminsih as consumption increases beyond some point
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Law of Diminishing Returns
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A property of the relationship between the amount of a good or service produced and the amount of a variable factor required to produce it; the law says that when some factors of production are fixed, increased production of the good eventually requires ever larger increases in the variable factor
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Lemons Model
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George Akerlof's explanation of how asymmetric information tends to reduce the average quality of goods offered for sale
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Logrolling
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The practice whereby legislators support one another's legislative proposals
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Long Run
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A period of time of sufficient length that all the firm's factors of production are variable
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Macroeconomics
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The study of the performance of national economies and the policies that governments use to try to improve that performance
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Marginal Benefit
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The marginal benefit of an activity is the increase in total benefit that results from carrying out one additional unit of activity
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Marginal Cost
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The marginal cost of an activity is the increase in total cost that results from carrying out one additional unit of the activity; as output changes from one level to another, the change in total cost divided by the corresponding change in output
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Marginal Product of Labor (MP)
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The additional output a firm gets by employing one additional unit of labor
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Marginal Revenue
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The change in a firm's total revenue that results from a one-unit change in output
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Marginal Utility
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The additonal utility gained from consuming an additional unit of a good
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Market
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The market for any good consists of all buyers and sellers of that good
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Market Equilibrium
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Occurs when all buyers and sellers are satisfied with their respective quantities at the market price
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Market Power
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A firm's ability to raise the price of a good without losing all it's sales
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Means-tested
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A benefit program is means-tested if its benefit level declines as the recipient earns additional income
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Microeconomics
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The study of individual choice under scarcity and its implications for the behavior of prices and quantities in individual markets
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Monopolistic Competition
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Industry structure in which a large number of firms produce slightly differentiated products that are resonably close substitutes for one another
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Moral Hazard
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The tendency of people to expend less effort protecting those goods that are insured against theft or damage
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Nash Equilibrium
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Any combination of strategy choices in which each player's choice is his or her best choice, given the other players' choices
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Natural Monopoly
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A monopoly that results from economies of scale (increasing returns to scale)
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Negative Income Tax (NIT)
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A system under which the government would grant every citizen a cash payment each year, financed by an additional tax on earned income
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Nominal Price
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Absolute price of a good in dollar terms
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Nonexcludable Good
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A good that is difficult, or costly, to exclude nonpayers from consuming
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Nonrival Good
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A good whose consumption by one person does not diminish its availability for others
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Normal Good
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A good whose demand curve shifts rightward when the incomes of buyers increase
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Normal Profit
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The opportunity cost of the resources supplied by the firm's owners; Normal Profit = Accounting Profit - Economic Profit
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Normative Economic Principle
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One that says how people should behave
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Oligopoly
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An industry structure in which a small number of large firms produce products that are either close or perfect substitutes
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Opportunity Cost
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The opportunity cost of an activity is the value of what must be forgone to undertake the activity
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Optimal Combination of Goods
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The affordable combination that yields the highest total utility
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Outsourcing
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A term increasingly used to connote having services performed by low-wage workers overseas
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Payoff Matrix
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A table that describes the payoffs in a game for each possible combination of strategies
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Perfect Hurdle
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One that completely segregates buyers whose reservation prices lie above some threshold from others whose reservation prices lie below it, imposing no cost on those who jump the hurdle
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Perfectly Competitive Market
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A market in which no indivudal supplier has significant influence on the market price of the product
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Perfectly Discriminating Monopolist
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A firm that charges each buyer exactly his or her reservation price
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Perfectly Elastic Demand
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The demand for a good is perfectly elastic with respect to price if its price elasticity of demand is infinite
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Perfectly Elastic Supply Curve
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A supply curve whose elasticity with respect to price is infinite
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Perfectly Inelastic Demand
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The demand for a good is perfectly inelastic with respect to price if its price elasticity of demand is zero
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Perfectly Inelastic Supply Curve
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A supply curve whose elasticity with respect to price is zero
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Personal Responsibility Act
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The 1996 federal law that transferred responsibility to welfare programs from the federal level to the state level and placed a five year lifetime limit on payment of AFDC benefits to any given recipient
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Pork Barrel Spending
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A public expenditure that is larger than the total benefit it creates but that is favored by a legislator because his or her constituents benefit from the expenditure by more than their share of the resulting extra taxes
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Positional Arms Control Agreement
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An agreement in which contestants attempt to limit mutually offsetting investments in performance enhancement
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Positional Arms Race
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A series of mutually offsetting investments in performance enahncement that is stimulated by a positional externality
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Positional Externality
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Occurs when an increase in one person's performance reduces the expected reward of another in situations in which reward depends on relative performance
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Positive Economic Principle
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One that predicts how people will behave
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Poverty Threshold
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The level of income below which the federal government qualifies a family as poor
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Present Value of a Perpetual Annual Payment
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For an annual interest rate r, the present value (PV) of a perpetual annual payment (M) is the amount that would have to be deposited today at that interest rate to generate annual interest earnings of M: PV = M/r
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Price Ceiling
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A maximum allowable price, specified by law
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Price Discrimination
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The practice of charging different buyers different prices for essentially the same good or service
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Price Elasticity of Demand
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The percentage change in the quantity demanded of a good or service that results form a one percent change in its price
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Price Elasticity of Supply
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The percentage change in the quantity supplied that will occur in response to a one percent change in the price of a good or service
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Price Setter
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A firm with at least some latitude to set its own price
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Price Taker
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A firm that has no influence over the price at which it sells its product
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Prisoner's Dilemma
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A game in which each player has a dominant strategy, and when each plays it, the resulting payoffs are smaller than if each had played a dominated strategy
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Producer Surplus
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The economic surplus gained by the sellers of a product as measured by the cumulative difference between the price received and their respective reservation prices
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Production Possibilities Curve
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A graph that describes the maximum amount of one good that can be produced for every possible level of production of the other good
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Profit
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The toal revenue a firm receives from the sale of its product minus all costs - explicit and implicit - incurred in producing it
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Profit-Maximizing Firm
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A firm whose primary goal is to maximize the difference between its total revenues and total costs
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Profitable Firm
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A firm whose total revenue exceeds its total cost
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Progressive Tax
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One in which the proportion of income paid in taxes rises as income taxes
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Proportional Income Tax
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One under which all taxpayers pay the same proportion of their incomes in taxes
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Public Good
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A good or service that , to at least some degree, is both nonrival and nonexcludable
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Pure Commons Good
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One for which nonpayers cannot easily be excluded and for which each unit consumed by one person means one less unit available for others
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Pure Monopoly
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The only supplier of a unique product with no close substitutes
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Pure Private Good
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One for which nonpayers can easily be excluded and for which each unit consumed by one person means one less unit available for others
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Pure Public Good
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A good or service that , to a high degree, is both nonrival and nonexcludable
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Rational Person
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Someone with well-defined goals who tries to fulfill those goals the best he or she can
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Rational Spending Rule
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Spending should be allocated across goods so that the marginal utility per dollar is the same for each good
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Rationing Function of Price
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Changes in prices distribute scarce goods to those consumers who value them most highly
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Real Price
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Dollar price of a good relative to the average dollar price of all other goods and services
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Regressive Tax
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A tax under which the proportion of income paid in taxes declines as income rises
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Rent-Seeking
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The socially unproductive efforts of people or firms to win a prize
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Repeated Prisoner's Dilemma
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A standard prisoner's dilemma that confronts the same players repeatedly
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Risk-Averse Person
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Someone who would refuse any fair gamble
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Risk-Neutral Person
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Someone who would accept any gamble that is fair or better
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Seller's Reservation Price
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The smallest dollar amount for which a seller would be willing to sell an additional unit, generally equal to marginal cost
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Seller's Surplus
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The difference between the price received by the seller and his or her reservation price
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Short Run
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A period of time sufficiently short that at least some of the firm's factors of production are fixed
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Slope
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In a straight oine, the ratio of the vertical distance the straight line travels between two points (rise) to the corresponding horizontal distance (run)
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Socially Optimal Quantity
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The quantity of a good that results in the maximum possible economic surplus from producing and consuming the good
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Statistical Discrimination
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The practice of makin gjudgments about the quality of people, goods, or services based on the characteristics of the groups to which they belong
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Substitutes
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Two goods are substitutes in consumption if an increase in the price of one causes a rightward shift in the demand curve for the other (or if a decrease causes a leftward shift)
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Substitution Effect
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The change in the quantity demanded of a good that results because buyers switch to or from substitutes when the price of a good changes
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Sunk Cost
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A cost that is beyond recovery at the moment a decision must be made
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Supply curve
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A graph or schedule showing the quantity of a good that sellers wish to sell at each price
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Time Value of Money
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The fact that a given dollar amount today is equivalent to a larger dollar amount today is equivalent to a larger dollar amount in the future because the money can be invested in an interest-bearing account in the meantime
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Tit-for-Tat
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A strategy for the repeated prisoner's dilemma in which players cooperate on the first move, then mimic their partner's last move on each successive move
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Total Cost
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The sum of all payments made to the firm's fixed variable factors of production
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Total Expenditure = Total Revenue
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The dollar amount consumers spend on a product is equal to the dollar amount sellers recieve
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Total Surplus
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The difference between the buyer's reservation price and the seller's reservation price
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Tragedy of the Common
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The tendency for a resource that has no price to be used until its marginal benefit falls to zero
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Unattainable Point
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Any combination of goods that cannot be produced using currently available resources
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Unit Elastic
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The demand for a good is unit elastic with respect to pricce if its price elasticity of demand is equal to 1
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Value of Marginal Product of Labor (VMP)
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The dollar value of the additional output a firm gets by emplying one additional unit of labor
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Variable
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A quantity that is free to take a range of different values
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Variable Cost
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A cost that varies with the level of an activity; the sum of all payments made to the firm's variable factors of production
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Variable Factor of Production
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An Input whose quantity can be altered in the short run
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Vertical Intercept
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In a straight line, the value taken by the dependent variable when the independent variable equals zero
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Winner-take-All Labor Market
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One in which small differences take in human captial translate into large differences in pay
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Workers' Compensation
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A government insurance system that provides benefits to workers who are injured on the job
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