Economic Definition of perfect competition and demand. Defined.
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Term perfect competition and demand Definition: The demand curve for the output produced by a perfectly competitive firm is perfectly elastic at the going market price. The firm can sell all of the output that it wants at this price because it is a relatively small part of the market. As a price taker, the firm has no ability to charge a higher price and no reason to charge a lower one. The market price facing a perfectly competitive firm is also the firm's average revenue and, most importantly, its marginal revenue.