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ECO 2305 EXAM 2 REVIEW TERMS
Chapter 4 and 5 vocab.
41
Economics
Undergraduate 2
03/06/2011

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Term
Quantity demanded
Definition
The amount of any good service, or resource that people are willing and able to buy during a specified period at a specified price.
Term
Demand
Definition
The relationship between the quantity demanded and the price of a good when all other influences on buying plans remain the same.
Term
Demand Schedule
Definition
A list of the quantities demanded at each different price when all the other influences on buying plans remain the same.
Term
Demand curve
Definition
A graph of the relationship between the quantity demanded of a good and its price when all the other influences on buying plans remain the same.
Term
Market demand
Definition
The sum of the demands of all the buyers in the market
Term
Change in demand
Definition
A change in the quantity that people plan to buy when any influence on buying plans other than the price of the good changes.
Term
Substitute
Definition
A good that can be consumed in place of another good
Term
Complement
Definition
A good that is consumed with another good
Term
Normal good
Definition
A good for which demand increases when income increases and demand decreases when income decreases
Term
Inferior good
Definition
A good for which demand decreases when income increases and demand increases when income decreases
Term
Change in the quantity demanded
Definition
A change in the quantity of a good that people plan to buy that results from a change in the price of the good with all other influences on buying plans remaining the same
Term
Quantity supplied
Definition
The amount of any good, service, or resource that people are willing and able to sell during a specified period at a specified price
Term
Supply
Definition
The relationship between the quantity supplied and the price of a good when all other influences on selling plans remain the same
Term
Supply schedule
Definition
A list of the quantities supplied at each different price when all the other influences on selling plans remain the same
Term
Supply curve
Definition
A graph of the relationship between the quantity supplied of a good and its price when all the other influences on selling plans remain the same
Term
Market supply
Definition
the sum of the supplies of all the sellers in the market
Term
Change in supply
Definition
a change in the quantity that suppliers plan to sell when any influence on selling plans other than the price of the good changes
Term
Substitute in production
Definition
A good that can be produced in place of another good
Term
Complement in production
Definition
A good that is produced along with another good
Term
Change in the quantity supplied
Definition
A change in the quantity of a good that suppliers plan to sell that results from a change in the price of the good
Term
Market equilibrium
Definition
When the quantity demanded equals the quantity supplied- buyers’ and sellers’ plans are in balance
Term
Equilibrium price
Definition
The price at which the quantity demanded equals the quantity supplied
Term
Equilibrium quantity
Definition
The quantity bought and sold at the equilibrium price.
Term
Surplus or excess supply
Definition
A situation in which the quantity supplied exceeds the quantity demanded
Term
Shortage or excess demand
Definition
A situation in which the quantity demanded exceeds the quantity supplied.
Term
Price elasticity of demand
Definition
A measure of the responsiveness of the quantity demanded of a good to a change in its price when all other influences on buyers’ plans remain the same
Term
Elastic demand
Definition
When the percentage change in the quantity demanded exceeds the percentage change in price
Term
Unit elastic demand
Definition
When the percentage change in the quantity demanded equals the percentage change in price
Term
Inelastic demand
Definition
When the percentage change in the quantity demanded is less than the percentage change in price
Term
Perfectly elastic demand
Definition
When the quantity demanded changes by a very large percentage in response to an almost zero percentage change in price
Term
Perfectly inelastic demand
Definition
When the percentage change in the quantity demanded is zero for any percentage change in the price
Term
Total revenue
Definition
The amount spent on a good and received by its seller and equals the price of the good multiplied by the quantity sold
Term
Total revenue test
Definition
A method of estimating the price elasticity of demand by observing the change in total revenue that results from a price change (with all other influences on the quantity sold remaining unchanged).
Term
Price elasticity of supply
Definition
A measure of the responsiveness of the quantity supplied of a good to a change in its price when all other influences on sellers’ plans remain the same
Term
Perfectly elastic supply
Definition
When the quantity supplied changes by a very large percentage in response to an almost zero percentage change in price
Term
Elastic supply
Definition
When the percentage change in the quantity supplied exceeds the percentage change in price
Term
Unit elastic supply
Definition
When the percentage change in the quantity supplied equals the percentage change in price
Term
Inelastic supply
Definition
When the percentage change in the quantity supplied is less than the percentage change in price
Term
Perfectly inelastic supply
Definition
When the percentage change in the quantity supplied is zero for any percentage change in the price
Term
Cross elasticity of demand
Definition
A measure of the responsiveness of the demand for a good to a change in the price of a substitute or complement when other things remain the same
Term
Income elasticity of demand
Definition
A measure of the responsiveness of the demand for a good to a change in income when other things remain the same
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