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Econ 218 Quiz #3
Chapters 11, 13, 14, 15
39
Economics
Undergraduate 2
04/11/2011

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Term
A monopolist
Definition
can choose any price along the market demand curve
Term
A monopoly's demand curve is
Definition
the same as its average revenue curve
Term
The market demand curve and the demand curve faced by a monopoly are
Definition
Identical
Term
If the monopolist is operating in the elastic portion of its demand curve
Definition
an increase in price will decrease total revenues
Term
A monopoly will maximize profits by producing the level of output where
Definition
it maximizes the difference between total cost and total revenue
Term
To maximize profits, the price markup should
Definition
equal the inverse of demand elasticity
Term
When a monopoly is maximizing profits, which of the following conditions generally holds?
Definition
MC = MR < AR
Term
Marginal revenue is negative when
Definition
demand is inelastic
Term
Assume that a firm's price is $4, marginal cost is $3 and the price elasticity of demand is estimated to be -4. Based upon this information we can conclude that the firm
Definition
is maximizing profit
Term
A natural monopoly
Definition
is an industry in which production cost is minimized if one firm supplies the entire output
Term
A monopoly’s demand curve is____________where_______________ is positive
Definition
elastic; marginal revenue
Term
Monopoly power refers to
Definition
a firm’s ability to set price above marginal cost
Term
As the Lerner index approaches zero
Definition
the firm’s price is closer to marginal cost
Term
As the Lerner index approaches one
Definition
the firm has increasing monopoly power
Term
Which of the following does not constitute a barrier to entry into a market?
Definition
homogenous product
Term
Monopolistic competition is characterized by which of the following:
(i) free entry and exit, (ii) differentiated product, (iii) few sellers
Definition
(i) and (ii)
Term
A monopolistic competitor who is maximizing profits will choose quantity such that
Definition
marginal revenue equals marginal cost
Term
The "monopolistic" element of monopolistic competition is due to the fact that
Definition
the firm, facing a downward sloping demand curve, has some control over price
Term
The "competition" in monopolistic competition is likely due to
Definition
free entry
Term
Monopolistically competitive firms earn zero economic profits
Definition
in long-run equilibrium only
Term
Product differentiation is associated with
Definition
monopolistic competitor firms, but not competitor firms
Term
Long-run equilibrium for the typical monopolistically competitive firm is characterized by
Definition
price equal to average cost at the chosen level of output
Term
For a monopolistic competitor, excess capacity is the difference in output
Definition
at minimum of average total cost minus where MR intersects MC
Term
Product differentiation in monopolistically competitive markets
Definition
A) must reflect real differences in the product, not perceptions.
B) cannot simply be due to a different type of packaging.
C) is hard to identify in practice.
D)*** None of the above
Term
Product differentiation can be achieved through
Definition
A) friendly service.
B) advertising designed to make consumers think a firm’s product is superior to its competitors’ product.
C) a really cool package.
D)*** All of the above.
Term
Which of the following is true of a firm operating in a perfectly competitive market but not true of a monopoly?
Definition
entry barriers are low
Term
Which of the following is the best example of an oligopoly market
Definition
A) *** cigarette producers
B) dine in pizza restaurants
C) hair cutting salons
D) auto repair facilities
Term
Game theory is a method of analyzing
Definition
situations in which there are interdependent outcomes
Term
The three main elements in game theory models are
Definition
players, strategies, and payoffs
Term
With reference to the payoff matrix in Figure 14-1, which firm has a dominant strategy?
Definition
both Firm A and Firm B. see diagram in PQ14 #3
Term
With reference to the payoff matrix in Figure 14-1, Firm A's dominant strategy is
Definition
high output
Term
With respect to the payoff matrix in Figure 14-1, the dominant firm equilibrium is
Definition
both firms produce high output.
Term
With respect to the payoff matrix in Figure 14-1, the Nash equilibrium is
Definition
both firms produce high output
Term
a Nash equilibrium is a set of strategies such
Definition
each firm's choice is the best one given the strategy chosen by the other player
Term
The prisoners' dilemma illustrates a situation in which
Definition
each player pursuing its self-interest generates a collective outcome that is inferior for both
Term
All dominant strategy games ______ have a Nash equilibrium; all games with Nash
equilibrium ______ be dominant strategy games
Definition
must; may not
Term
A Prisoner’s Dilemma has
Definition
A) no equilibrium.
B) a dominant-strategy equilibrium.
C) a Nash equilibrium.
D) *** Both (b) and (c)
Term
In a two-person game where each player has a dominant strategy, each player chooses
Definition
his best strategy independent of the other player’s choice
Term
In a two-person game with a Nash equilibrium, each player chooses
Definition
his best strategy depending on the other player’s choice
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