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ECO 203
FINAL EXAM KEY TERMS
111
Economics
Undergraduate 1
12/12/2012

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Term
Market
Definition
group of buyers and sellers of a particular good or service
Term
Competitive Market
Definition
A market in which there are many buyers and sellers so that each has a negligible impact on the market place
Term
Quanity Demanded
Definition
the amount of a good that buyers are willing and able to purchase
Term
Law of Demand
Definition
The claim that all other things equal, the quantity demanded of a good falls when the price of a good rises
Term
Demand Schedule
Definition
table showing relatiionship between the price of a good and the quantity demanded
Term
Demand Curve
Definition
A graph of the relationship between the price of a good and the quantity demanded
Term
Market Demand
Definition
sum of all the individual demands for a particular goods or services
Term
Normal Good
Definition
good for which, other things equal, an increase in income leads to an increase in demand
Term
Inferior Good
Definition
A good for which, other things equal, an increase in income leads to a decrease in demand
Term
Substitutes
Definition
two goods for which an increase in the price of one leads to an increase in the demand for another
Term
Complements
Definition
two goods for which an increase in the price of one leads to a decrease in the demand for the other
Term
Quantity Supplied
Definition
amount of a good that sellers are willing and able to sell
Term
Law of Supply
Definition
the claim that, other things equal, the quantity supplied of a good rises when the price of a good rises
Term
Supply Schedule
Definition
A table that shows the relationship between the price of a good and the quantity supplied
Term
Supply curve
Definition
A graph of the relationship between the price of a good and the quantity supplied
Term
Equilibrium
Definition
situation in which the market price has reached the level at which quantity supplied equals quantity demanded
Term
Equilibrium Price
Definition
The price that balances quantity supplied and quantity demanded
Term
Equilibrium Quanity
Definition
the quantity supplied and the quantity demanded at the equilibrium price
Term
Surplus
Definition
a situation in which quantity supplied is greater than quantity demanded
Term
Shortage
Definition
A situation in which quantity demanded is greater than quantity supplied
Term
Law of Supply and Demand
Definition
The claim that the price of any good adjusts to bring the quantity supplied and the quantity demanded for that good into balance
Term
FACTORS THAT SHIFT DEMAND CURVE
Definition
  1. Price of Complements
  2. Expectations
  3. Price of Substitutes
  4. Income
  5. Number of Buyers
  6. Tastes
  7. Taxes
  8. Season 
Term
Factors that shift supply
Definition
  1. Subsidies and Taxes
  2. Input Prices
  3. Price of substitutes in production
  4. Technology
  5. Expectations
  6. Number of sellers 
Term
Elasticity
Definition
a measure of the responsiveness of quantity demanded or quantity supplied to a change in one of its determinants
Term
Price elasticity of demand
Definition
A measure of how much the quantity demanded of a good responds to a change in the price of that good, computed as the percentage change in quantity demanded divided by percentage change in price
Term
Total Revenue
Definition
The amount paid by buyers and received by sellers of a good, computed as the price of the good times the quantity sold
Term
Income Elasticity of Demand
Definition
measure of how much the quantity demanded of a good responds to a change in consumers'income computed as the percentage change in quantity demanded divided by the percent change in income
Term
Cross Price Elasticity of Demand
Definition
a measure of how much the quantity demanded of one good responds to a change in the price of another good, computed as the percentage change in quantity demanded of the first good divided by the percentage change in the price of the second good
Term
Price Elasticity of supply
Definition
a measure of how much the quantity supplied of a good responds to a change in the price of that good, computed as the percentage change in quantity supplied divided by the percentage change in price
Term
Income Elasticity of Demand will be Positive or Negative for a Normal Good?
Definition
Positive
Term
For an Inferior Good, Income elasticity of demand will be positive or negative?
Definition
negative
Term
What are the determinants of Price Elasticity of Supply?
Definition
Ability to change and Time
Term
Welfare Economics
Definition
The study of how the allocation of resources affects economic well being
Term
Willingness to Pay
Definition
The maximum amount that a buyer will pay for a good
Term
Consumer Surplus
Definition
The amount a buyer is willing to pay for a good minus the amount the buyer actually pays for it
Term
Cost
Definition
The value of everything a seller must give up to produce a good
Term
Producer Surplus
Definition
amount a seller is paid for a good minus the seller's cost of providing it.
Term
Efficiency
Definition
The property of a resource allocation of maximizing the total surplus received by all the members of society
Term
Equality
Definition
property of distributing economic prosperity uniformly among the members of society
Term
Deadweight Loss
Definition
fall in total surplus that results from a market distortion such as a tax
Term
Absolute Advantage
Definition
the ability to produce a good using fewer inputs than another producer
Term
Opportunity cost
Definition
Whatever must be given up to obtain some item
Term
Comparative Advantage
Definition
The ability to produce a good at a lower opportunity cost than another producer
Term
Imports
Definition
Goods produced abroad and sold domestically
Term
Exports
Definition
Goods produced domestically and sold abroad
Term
World Price
Definition
Price of a good that prevails in the worldmarket for that good
Term
Tariff
Definition
A tax on goods produced abroad and sold domestically
Term
Externality
Definition
The uncompensated impact of one person's actions on the well being of a bystander
Term
Internalizing the Externality
Definition
Altering the incentives so that people take acount of the external effects of their actions
Term
Corrective Tax
Definition
A tax dsigned to induce private decision makers to take account of the social costs that arise from a negative externality
Term
Coase Theorem
Definition
The proposition that if private parties can bargain without cost over the allocation of resources, they can solve the problem of externalities on their own.
Term
Transaction Costs
Definition
the costs that parties incur in the process of agreeing to and following through on a bargain
Term
Excludability
Definition
The property of a good whereby a person can be prevented from using it
Term
Rivalry in Consumption
Definition
The property of a good whereby one person's use diminishes other people's use
Term
Private Goods
Definition

Goods that are both rival and excludable in consumption

(i.e. coffee)

Term
Public Goods
Definition
Goods that are neither excludable nor rival in consumption (i.e. national defense)
Term
Common resources
Definition
Goods that are rival in consumption but not excludable (i.e. fishing, state park)
Term
Natural Monopoly goods
Definition
goods that are exludable but nonrival (i.e. cable, electricity)
Term
Free Rider
Definition
A person who receives the benefit of a good but avoids paying for it
Term
Cost Benefit Analysis
Definition
study that compares the costs and benefits to society of providing a public good
Term
Tragedy of the Commons
Definition
A parable that illustrates why common resources are used more than is desirable from the standpoint of society as a whole
Term
If the demand curve is uncertain, in providing a disincentive, it is best to do what?
Definition
TAX
Term
If the demand curve is certain, in providing a disincentive, what sould be used?
Definition
permits
Term
Total Revenue
Definition
the amount a firm receives for the sale of its output
Term
Total cost
Definition
Market value of the inputs a firm uses in production
Term
Profit
Definition
Total revenue minus total cost
Term
Explicit Costs
Definition
input costs that require an outlay of money by the firm
Term
Implicit costs
Definition
input costs that do not require an outlay of money by the firm
Term
Economic Profit
Definition
Total revenue minus total cost, including both explicit and implicit costs
Term
accounting profit
Definition
total revenue minus total explicit cost
Term
Production Function
Definition
the relationship between quantity of inputs used to make a good and the quantity of output of that good.
Term
marginal Product
Definition
an increase in output that arises from an additional unit of output
Term
Diminishing Marginal Product
Definition
property whereby the marginal product of an input declines as the quantity of the input increases
Term
Fixed Costs
Definition
costs that do not vary with the quantity of output produced
Term
Variable Costs
Definition
costs that vary with the quantity of output produced
Term
Average Total Costs
Definition
total costs divided by the quantity of output
Term
Average Variable costs
Definition
variable costs divided by quantity of output
Term
average fixed costs
Definition
fixed cost divided by the quantity of output
Term
Marginal Costs
Definition
increase in toal cost that arises from an extra unit of production
Term
Efficient Scale
Definition
quantity of output that minimizes average total cost
Term
Economies of Scale
Definition
The property whereby long run ATC falls as quantity of output increases
Term
Diseconomies of Scale
Definition
property by which long run ATC rises as quantity of input increases
Term
Constant Returns to Scale
Definition
property whereby long run ATC stays the same as quantity of output changes
Term
Competitive Market
Definition
A market with many buyers and sellers trading identical products so that each buyer and seller is a price taker
Term
Average Revenue
Definition
Total Revenue divided by quantity sold
Term
Marginal Revenue
Definition
Change in Total revenue from an additional unit sold
Term
Sunk Cost
Definition
cost that has already been committed and cannot be recovered.
Term
Monopoly
Definition
A firm that is the sole seller of a product without close substitutes
Term
Natural Monopoly
Definition
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
Term
Price Discrimination
Definition
the business practice of selling the same good at different pricesto different customers
Term
What are the three main sources of Monopoly?
Definition
Monopoly resources, Goverment created, or Natural Monopoly (ATC for some product continually falls)
Term
Price Effect
Definition
when price goes down, Total Revenue goes down
Term
Output Effect
Definition
As quantity increase, total Revenue increase
Term
Oligopoly
Definition
A market Structure in which only a few sellers offer similar or identical products
Term
monopolistic Competition
Definition
a market structure in which many firms sell products that are similar but not identical
Term
Collusion
Definition
An agreement among firms in a market about quantities to produce or prices to charge
Term
Cartel
Definition
A group of firms acting in unison
Term
Nash Equilibrium
Definition
a situation in which economic actors interacting with one another each choose their best strategy given the strategies that all other economic actors have chosen
Term
Prisoner's dilemma
Definition
A particular "game" between two captured prisoners that illustrates why cooperation is difficult to maintain even when it is mutually beneficial.
Term
Dominant Strategy
Definition
a strategy that is best for a player in a game regardless of the strategies chosen by the other players
Term
Budget Constraint
Definition
the limit on the consumption bundles that a consumer can afford
Term
Indifference Curve
Definition
A curve that shows consumption bundles that give the customer the same level of satisfaction
Term
marginal rate of substitution
Definition
the rate at which a consumer is willing to trade one good for another
Term
Perfect substitutes
Definition
two goods with straight line indifference curves
Term
Perfect Complements
Definition
two goods with right angle indifference curves
Term
Moral Hazzard
Definition
tendancy of a person who is imperfectly monitored to engage in dishonest or otherwise undesirable behavior
Term
Asymmetric Information
Definition
difference in access to relavent knowledge
Term
Adverse Selection
Definition
tendancy for the mix of unobserved attributes to become undesirable from the standpoint of an uninformed party
Term
Signaling
Definition
action taken by informed party to reveal private information to an uninformed party
Term
Screening
Definition
action taken by an uninformed party to induce an informed party to reveal information
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