Which of the following market structures is (are)capable of earning positive economic profits in the long run?

Question

Quizplus · Accepted Answer

Monopolies and oligopolies can maintain positive economic profits in the long run due to barriers to entry that prevent competitors from entering the market, allowing these firms to sustain higher prices. Monopolistic competition, in contrast, tends to drive profits to zero in the long run as firms enter the market and compete away economic profits.

Which of the Following Market Structures Is (Are)capable of Earning