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Chapter 4
Vocabulary
19
Economics
10th Grade
02/07/2008

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Term
demand
Definition
the desire, ability, and willingness to buy a product
Term
microeconomics
Definition
the area of economics that deals with behavior and decision making by small units, such as individiuals and firms
Term
demand schedule
Definition
a listing that shows the various quantities demanded of a particular product at all prices that might prevail in the market at a given time
Term
demand curve
Definition
a graph showing the quantity demanded at each and every price that might prevail in the market
Term
Law of Demand
Definition
states that the quantity demanded of a good or service varies inversely with its price
Term
market demand curve
Definition
the demand curve that shows the quantities demanded by everyone who is interested in purchasing the product
Term
Marginal utility
Definition
the extra usefulness or satisfaction a person gets from acquiring or using one more unit of a product
Term
diminishing marginal utility
Definition
states hat the extra satisfaction we get from using additional quantities of the product begins to diminish
Term
change in quantity demanded
Definition
a movement along the demand curve that shows a change in the quantity of the product purchased in response to a change in price
Term
income effect
Definition
the change in quantity demanded because of a change in price that alters consumers' real income
Term
change in demand
Definition
consumers demand different amounts at every price, causing the demand curve to shift to the left or the right
Term
substitutes
Definition
competing products that can be used in place of one another; products related in such a way that an increase in the price of one increases the demand for the other
Term
complements
Definition
products that increase the value of other products; products related in such a way that an increase in the price of one reduces the demand for both
Term
complements
Definition
products that increase the value of other products; products related in such a way that an increase in the price of one reduces the demand for both
Term
elasticy
Definition
a measure of responsiveness that tells us how a dependent variable sudh as quantity responds to a change in an independent variable such as price
Term
demand elasticity
Definition
the extent to which a change in price causes a change in the quantity demanded
Term
elastic
Definition
tyoe if elasticity where the percentage change in the independent variable (usually price) causes a more than proportionate change in the dependent variable (usually quantity demanded or supplied)
Term
inelastic
Definition
means that a given change in prive causes a relatively smaller change in the quantity demanded
Term
unit elastic
Definition
a given change in prive causes a proportional change in quantity demanded
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