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barriers to entry
Characteristics of a particular market that block the entry for new firm in a monopoly market.
A firm that confronts economies of scale over the entire range of outputs demanded in its industry.
Situations where products become more useful the larger the number of users of the product.
demand and marginal revenue curves (monopoly)
The firm faces the market demand curve; marginal revenue is below market demand.
The monopoly firm determines price; it's a price setter. Price is greater than marginal cost.
profit maximization (monopoly)
Firms produce where marginal cost equals marginal revenue and charge the corresponding price on the demand curve.
Because entry is blocked, a monopoly firm can sustain an economic profit in the long run.
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