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Chap 3/4 of Krugman Wells
2nd Exam Material
23
Economics
Undergraduate 1
02/10/2009

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Term
what's a competitive market?
Definition
the name of a market in which there are many buyers and sellers of the same good or service
Term
what's the supply and demand model?
Definition
the name of the model of how a competitive market works
Term
what's a demand schedule?
Definition
the name of agraphical representation of the demand schedule; shows how much of a good or service customers want to buy at any given price
Term
what's a demand curve?
Definition
a graphical representation of the demand sched. It shows how much of a good or service consumers want to buy@any given price
Term
what's the quantity demanded?
Definition
the name of the actual amount customers are willing to buy at a specific price
Term
what's the law of demand?
Definition
the law that says a higher price for a good, other things equal, leads people to demand a smaller quantity of the good
Term
what's a shift of the demand curve?
Definition
the name of a change in the quantity demanded at any given price, (demand curve moves to new position)
Term
what's movement along the demand curve?
Definition
the name of the change in the quantity demanded of a good that is the result of the good's price
Term
what are substitutes?
Definition
what two goods are if a fall in the price of one makes consumers less willing to buy the other
Term
what are complements?
Definition
what two goods are if the fall in the price of one makes people more willing to buy the other good
Term
what's a normal good?
Definition
a good that's demand increases when income increases
Term
what's an inferior good?
Definition
a good that's demand decreases when income increases
Term
wat is the quantity supplied?
Definition
the actual amount of a good or service ppl are willing to sell at some specific price
Term
what's a supply schedule?
Definition
what shows how much of a good or service would be supplied at different prices
Term
what's a supply curve?
Definition
what shows graphically how much of a good or service ppl are willing to sell at any given price
Term
what is a shift of the supply curve?
Definition
a change in the quantity supplied of a good or service at any given price. It is represented by the change of the original supply curve to a new position
Term
what is an input?
Definition
a good that is used to produce another good
Term
what's a quota?
Definition
an upper limit on a quantity that can be bought or sold set by the gov
Term
wats quota rent
Definition
the diff between the demand price and supply price at the quota limit; is equal to the market price of the license when the license is traded
Term
wats a price ceiling?
Definition
a government-set maximum price that sellers are allowed to charge for a good; a form of price control
Term
how does an increase in supply affect the supply curve and equilibrium?
Definition
supply curve moves to right, equilibrium price down but price moves up
Term
often fluctuations in markets involve shifts of both the supply and demand curves, how are these predictable?
Definition
both shift in same direction--change in quantity is predictable but price is not
when opposite--change in prices is predictable but quantity is not
when simultaneous shifts of d&s--the greater shifter has a greater effect on price and quantity
Term
what is a monopoly and a natural monopoly?
Definition
A monopoly is a firm which is the only one producing and selling a particular product. A natural monopoly is a monopoly in an industry in which it is most efficient (involving the lowest long-run average cost) for production to be concentrated in a single firm
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