# how to calculate profit maximizing output in perfect competition

Under perfect competition, a firm is a price taker of its good since none of the firms can individually influence the price of the good to be purchased or sold. This gives a firm normal profit because at Q1, AR=AC. Following this rule assures allocative efficiency. Profit Maximisation in the Real World Profit Maximization (SR) AIMS: Be able to explain the concept of profit maximization. Managerial economists have studied monopolistic competition to understand how to maximize profit in that economic model. Be able to provide the assumptions of a perfect competition model. It can only decide about the output to be sold at the market price. Instead of using the golden rule of profit maximization discussed above, you can also find a firmâs maximum profit (or minimum loss) by looking at total revenue and total cost data. Profit maximization rule (also called optimal output rule) specifies that a firm can maximize its economic profit by producing at an output level at which its marginal revenue is equal to its marginal cost. Because a monopolistically competitive firm produces a differentiated good, short-run profit maximization requires the firm to determine both the profit-maximizing quantity and the goodâs price. Since MR = Price and profit maximizing output is where MR = MC, firmâs supply curve is linked to its marginal cost curve. Marginal revenue is the change in revenue that results from a change in a change in output. The rule of profit maximization in a world of perfect competition was for each firm to produce the quantity of output where P = MC, where the price (P) is a measure of how much buyers value the good and the marginal cost (MC) is a measure of what marginal units cost society to produce. It cannot influence the market price of the product. The Geometry of Profit-Maximization Perfect competition arises when there are many firms selling a homogeneous good to many buyers with perfect information. Be able to sketch appropriate graphs to identify the quantity and price level that maximizes profit. Profit Maximisation in Perfect Competition. The rule of profit maximization in a world of perfect competition was for each firm to produce the quantity of output where P = MC, where the price (P) is a measure of how much buyers value the good and the marginal cost (MC) is a measure of what marginal units cost society to produce. However, in the short run it is possible for a perfectly competitive firm to make a positive economic profit, an instructors will commonly ask where the profit maximizing point is. It is the price-taker and quantity-adjuster. The firm maximises profit where MR=MC (at Q1). Remember that the area of a rectangle is equal to its base multiplied by its height. For almost all markets, the concept is similar. The rule for a profit-maximizing perfectly competitive firm is to produce the level of output where Price= MR = MC, so the raspberry farmer will produce a quantity of 90, which is labeled as e in Figure 4 (a). Firmâs Supply Curve A perfectly competitive firmâs supply curve shows how the firmâs profit-maximizing output varies as the market price varies, other things remaining the same. Profit Maximizing Using Total Revenue and Total Cost Data. Likewise, if there is negative economic profit, then firms will exit the market to take advantage of opportunities elsewhere until economic profit again equals zero. There is a very basic concept of understanding Profit maximization either for Perfect Competition or another market model. Profit Maximisation under Perfect Competition: Under perfect competition, the firm is one among a large number of producers. In perfect competition, the same rule for profit maximisation still applies. 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