Final answer:
Monopolistic competition and monopoly differ in long-term profit prospects, pricing strategies, and profit sustainability.
Explanation:
Monopolistic competition and monopoly share similarities and differences. In both, firms are not price takers, but in a monopoly, the price is set above marginal cost leading to positive profit, while in monopolistic competition, firms can only make short-term profits. Both can continue operations in the short run if price covers variable costs, but in the long run, monopolies can earn positive economic profit, unlike firms in monopolistic competition.
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