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In the short run, the portion of the marginal cost curve that lies above the average variable cost curve shows a competitive firm's. Multiple Choice O demand curve. average cost curve. supply curve. O fixed cost curve. In the short-run, the monopolistically competitive firm will experience: Multiple Choice O economic profits losses, but in the long-run only an economic profit. economic profits and losses, but in the long-run only a normal profit. an economic profit, and also one in the long-run. a normal profit, but in the long-run only an economic profit