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Economics Ch 3
Hubbard
25
Economics
Undergraduate 3
09/24/2013

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Cards

Term
perfectly competitive market
Definition

many buyers and sellers, all products the same, no barriers for new firms

(only possible for wheat, etc)

Term
demand schedules
Definition
table showing relationship between price of product and quantity demanded
Term
quantity demanded
Definition
amount of a good or service that a customer is willing and able to pay
Term
demand curve
Definition
shows the relationship between proce of product and quantity demanded
Term
the law of demand
Definition

the inverse relationship between the price of a product and quantity demanded 

- heec; when the price falls, the demand increases and vv.

Term
substitution effect
Definition
changein the quanitity demanded results from change in price making it cheaper than other goods that are substitutes
Term
income effect
Definition

effect of a change in good's price on consumer's purchasing power 

(purchasing power = what you can buy on your fixed income)

Term
centeris paribus
Definition
all else equal
Term
variables that shift market demand
Definition

1. income

2. price of related goods

3. taste

4. pop/demo

5. expected future price

Term
normal good
Definition
demand increases following a rise in income and vv
Term
inferior goods
Definition

demand decreases during rise in income and vv

*tuna vs steak

Term
complementary goods vs substitute goods
Definition

complementary goods: buns/ burgers

substitute: buy one and less of another

Term
taste
Definition
ad campaigns/ catchall category
Term
change in demand vs change in quanitity demanded
Definition

change in demand: shift of curve (variable other than price)

 

change in QD: movement along curve due to price change

Term
quantity supplied
Definition
amount a good or service that a firm is willing and able to supply at a given price
Term
supply curve
Definition
shows rel. price of product and quantity supplied
Term
law of supply
Definition
heec; increase in price causes increase in quantity supplied and vv
Term
variables that shift supply
Definition

1. price of inputs

2. technological change

3. prices of substitutes in production

4. number of firms in market

5. expeted future prices

Term
what happens when firms enter/exit the market
Definition

enter: shifts right

exit: shifts left

Term
change in supply vs change in quantity supplied
Definition

change in supply: shift of curve not related to price

change in quantity supplied: movement on curve due to price change

Term
market equilibirum
Definition
only at this point is quantity willing to buy equal to quantity willing to sell
Term
how does a market not at equilibirum move toward equilibrium and then stay there
Definition
shortage and surplus logical responses
Term
surplus
Definition

when quanitity supplied is greater than demanded

- incentive to decrease price --> simultaneously increases demand and decreases supply

Term
shortage
Definition

when quantity demanded is greater than quanitity supplied 

- raise price w out losing sales ---> increases supply and decreases demand 

Term
how markets change over time
Definition
depends on whether demand shifts more or if supply shifts more
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