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Intro to Eco. Definitions
Leydyard 1st midterm definitions
19
Economics
Undergraduate 1
09/30/2008

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Term
Absolute advantage
Definition
the ability to produce more of a good in a given amount of time
Term
Comparative advantage
Definition
The ability to produce a good with a lower opportunity cost
Term
Opportunity cost
Definition
How much of one good you have to give up to produce a unit of the other good.
Term
Quantity demanded
Definition
the amount of a good that a buyer is willing and able to purchase at a given price.
Term
Demand
Definition
A graph of the relationship between price and quantity demanded.
Term
Quantity supplied
Definition
the amount of a good that sellers are willing and able to sell at a given price.
Term
Supply
Definition
A graph of the relationship between price an quantity supplied
Term
Inferior good
Definition
a good for which, all else equal, a fall in income leads to an increase in demand
Term
Normal good
Definition
a good for which, all else equal, a fall 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 the other.
Term
Compliments
Definition
two goods for which an increase in the price of one leads to a decrease in the demand for the other.
Term
Perfect Substitutes
Definition
two goods that can be substituted for each other in a specific ratio (straight line indifference curves.)
Term
Perfect Compliments
Definition
two goods which must be consumed in a specific ratio together (right angle indifference curves)
Term
Equilibrium
Definition
a price (P*) and quantity (Q*) such the QS = QD = Q*.
Term
Budget Constraint (BC)
Definition
the limit on the consumption bundles that a consumer can afford.
Term
Indifference Curves (IC)
Definition
A curve that shows the consumption bundles that give the consumer 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 and stay on the same indifference curve.
Term
Income effect
Definition
The change in consumption that results when a price change moves a consumer to a higher or lower indifference curve
Term
Substitution effect
Definition
The change in consumption that results when a price change moves a consumer to a new point on the same indifference curve to a new Marginal rate of substitution.
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