Imperfect Competition
Which of the following is a key characteristic of monopolistic competition?
Homogeneous products
High barriers to entry
Differentiated products
Few firms
Which of the following is the MOST likely example of a barrier to entry that leads to imperfect competition?
A large number of firms producing identical products.
The presence of significant economies of scale.
Consumers having perfect information about all products in the market.
Firms being price takers.
Which of the following is a characteristic of a monopoly?
Many firms
Price taker
Single seller
Free entry and exit
Suppose a monopoly faces a demand curve of and has a constant marginal cost of $20. What is the deadweight loss associated with this monopoly?
$800
$1600
$2400
$3200
A natural monopoly experiences economies of scale such that its average total cost (ATC) is always decreasing. If the government regulates the monopoly using average cost pricing, which of the following will occur?
The monopoly will earn positive economic profits.
The monopoly will produce the allocatively efficient quantity.
The monopoly will earn zero economic profit.
The monopoly will shut down.
Which condition is NOT necessary for a firm to successfully price discriminate?
The firm must be a price taker.
The firm must have monopoly power.
The firm must be able to segregate its market.
Customers cannot resell the product.
Compared to a single-price monopolist, a perfectly price-discriminating monopolist will:
Produce a lower quantity and charge a higher price.
Produce a higher quantity and capture more consumer surplus.
Produce the same quantity and generate deadweight loss.
Produce a lower quantity and generate more consumer surplus.

How are we doing?
Give us your feedback and let us know how we can improve
Suppose a monopolist can perfectly price discriminate. If the firm's marginal cost is constant at P = 50 - Q$, what is the firm's profit?
$400
$800
$200
$1600
In the long run, a firm in monopolistic competition will typically:
Earn positive economic profits.
Earn negative economic profits.
Earn zero economic profit.
Produce at the minimum of average total cost.
A monopolist maximizes profit by producing at the quantity where:
Price equals marginal cost (P = MC)
Marginal revenue equals marginal cost (MR = MC)
Price equals average total cost (P = ATC)
Marginal revenue equals average total cost (MR = ATC)