When a monopolist which does not price discriminate maximizes profit and its economic profit is zero, this will charge a price: (w) equal to marginal cost and will be at the minimum average cost. (x) equal to marginal cost, but will produce less than the output which minimizes average cost. (y) above marginal cost, and will minimize average cost. (z) above marginal cost, and produce an output less than the output which minimizes average cost.
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