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Average total cost curve in pure economic profit

No firm can ever generate a pure economic profit unless this: (i) possesses some market power or monopoly power. (ii) can adjust both its level of output and the price of its products. (iii) faces a demand curve with a segment above its average total cost curve. (iv) is protected from competition by barriers to entry. (v) adjusts its technology so that its average total cost is the minimum possible.

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