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Chapters 10-15
do better
43
Economics
Undergraduate 1
11/08/2011

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Term
Characteristics of a Monopoly
Definition
single seller
no close subsititues/unique
change price through supplied quantity
blocked entry into market
Term
Barriers to Entry
Definition
factors that prevent firms from entering market/indsutry
ATC decreases as quantity increases (small firms fant survive because prices are too high)
Term
4 different barriers
Definition
1. Economies of Scale
2. Legal Barriers (Licenses, Patents)
3. Control of Resources
4. Strategic Pricing
Term
economies of scale
Definition
competitors cant get price low enough
Term
legal barriers
Definition
patents-exclusive right to use invention and licenses-limited entry by govt licensing
Term
orship/control of essential resources
Definition
like contracts with athletes
Term
barrier pricing
Definition
a new firm tries to enter, monopolist can slash prices (microsoft charged higher prices to computer companies
Term
monopolist is only firms so it faces...
Definition
the entire market demand (standard downward-sloping curve)
Term
marginal revenue is or=demand
Definition
marginal revnue
Term
price is always elastic or inelastic
Definition
elastic (area between vertical axis and marginal revenues intersection with horizantal access)
Term
monopolist is pricemaker
Definition
decides at what quantity to produce (demand curve is used to determine the corresponding price
Term
monopolist produces at...
Definition
mr=mc
Term
know profit and loss graphs on 201 and 203
Definition
also know loss is less common than profit for monopoly but not impossible
loss WIL NOT BE TOLERATED
Term
calculate profit from graph
Definition
dont fuck this up
Term
Do monopolists not have demand or not have supply lines
Definition
supply curve
Term
does monopoly perfer total profit or unit profit
Definition
total profit
Term
two types of efficiency and wher do they occurr?
Definition
productive-p=min. ATC
allocative eff P=mc
neither occur in any system
Term
monopoly regulation
graph on 210
where is...
a. socially optimatl
B. fair return price
Definition
a. P=MC
B.P=ATC
Term
dilemma of (monopoly regulation)
Definition
socially optimal price is best for society but causes loss for monopolists
Fair return price gives "normal profit" for monopolies but doesnt completely fix the efficiency
Term
characteristics of monopolistic competition
Definition
(1) a relatively large number of sellers, (2) differentiated products (often promoted by heavy advertising), and (3) easy entry to, and exit from, the industry.
Term
deamnd curve of monopolistic competition is...
Definition
downward sloping and elastic
Term
MC profit and loss graphs pg 220
Definition
Firm produces at mr=mc
know when profit and loss occur
be able to calculate profit giben price, atc, and quantity produced
Term
efficiency
Definition
has neither
Term
mono comp elastic exists when...
Definition
market is inefficieny
Term
characteristics of oligopoly
Definition
has limited control over product price because of mutual interdependence (except when there is collusion among firms), and in which there is typically nonprice competition., a market dominated by a few large producers of a homogeneous or differentiated product. Because of their “fewness,” oligopolists have considerable control over their prices, but each must consider the possible reaction of rivals to its own pricing, output, and advertising decisions.

A Few Large Producers
Homogeneous or Differentiated Products
Control over Price, but Mutual Interdependence
Entry Barriers
Mergers
Term
game theory
Definition
study of how people behave in strategic situations
(prisoner's dilemma
Term
payoff matrix
Definition
on page 226, you slut
Term
3 concepts illustrtrated in matrix
Definition
mutual interdpendence
collusion
incentive to cheat
Term
3 models of oligopoly
Definition
nonconclussive
collusive
price leadership model
Term
nonconclussive oligopoly
Definition
firms operate independently
THE CHOICES
match a price change
ignore a proice change
PRICE INFLEXIBILITY
if 1 firm increases price, others ignor
if 1 lowers, others stay same
price is consistent
Term
collusion
Definition
assume other firms match price increase or decrease, each firms finds it most profitable to stay at same price as rivals
REDUCES PRICE WARS AND GIVES HIGHER PROFIT
illegal in america bceause of anti-trust
Term
cartel
Definition
group of producers who create a formal written agreement specifiying how much each will produce and charge
Term
price leadership
Definition
dominant firm initiates a price change and others follow (this is rare)
Dominant firms communicate with others
-lowers price to keep out other frims
Term
why is oligarchy worse than monopoly
Definition
there is monopoly power in oligopoly but no regulation
Term
benefit of oligopoly
Definition
increased foreign competition, limit pricing provides lower prices for consumers
technilogical advvance due to the high profits of olipologies
Term
who was worried about population beating resources
Definition
thomas malthus
Term
demographers see population peak when
Definition
2050, followed by decrease
Term
paul ehrlich
Definition
thought people would starve to death in 1980 and 80s
Term
why was paul wrong
Definition
supplies of commodities have increased
per capita consumption of resources have leveled off and decreased
Term
increased GDP per BTU means...
Definition
more efficient energy use
Term
costs of different types of electricity
Definition
fixed cost (cost to build)\
variable cost (generation cost)
Term
as price of traditional energy sources rise
Definition
alternative energies become more realistic
Term
user cost is opportunity cost o extracting and selling resource today instead of in future
Definition
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