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Profit Maximization

Profit Maximization. Chapter 9-1. Profit Maximization. The objective of a for-profit firm is to maximize profit. Profit is total revenue less the costs of the resources (land, labor, capital) used. Total revenue is the price of goods and services multiplied by the quantity sold, PQ.

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Profit Maximization

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  1. Profit Maximization Chapter 9-1

  2. Profit Maximization • The objective of a for-profit firm is to maximize profit. • Profit is total revenue less the costs of the resources (land, labor, capital) used. • Total revenue is the price of goods and services multiplied by the quantity sold, PQ. Profit = PQ – Cost of land, labor and capital

  3. Profit-Maximizing Level of Output • The goal of the firm is to maximize profits. • Profit is the difference between total revenue and total cost.

  4. Total Revenue Total Revenue = Price X Quantity

  5. Profit-Maximizing Level of Output • What happens to profit in response to a change in output is determined by marginal revenue (MR) and marginal cost (MC). • A firm maximizes profit when MC = MR.

  6. Profit-Maximizing Level of Output • Marginal revenue (MR) – the change in total revenue associated with a change in quantity. • Marginal cost (MC) – the change in total cost associated with a change in quantity.

  7. Marginal Revenue and Marginal Cost • The Profit maximizing quantity of output can be determined by comparing marginal revenue and marginal cost. • Marginal cost is the additional cost of producing one more unit of output. • Marginal revenue is the additional revenue from selling one more unit of output. • Profit is maximized at the output level where marginal revenue and marginal cost are equal. • The supply rule is: Produce and offer for sale the quantity at which MR=MC.

  8. MR and MC • Marginal Revenue = Change in Total Revenue/Change in Total Output MR = ΔTR/ΔQ • Marginal Cost = Change in Total Cost/Change in Total Output MC = ΔTC/ΔQ • Comparing marginal revenue and marginal cost determines whether the firm needs to supply more or less in order to maximize profit.

  9. Profit Maximization

  10. Profit Maximization: MC = MR • To maximize profits, a firm should produce where marginal cost equals marginal revenue.

  11. How to Maximize Profit • If marginal revenue does not equal marginal cost, a firm can increase profit by changing output. • The supplier will continue to produce as long as marginal cost is less than marginal revenue.

  12. How to Maximize Profit • The supplier will cut back on production if marginal cost is greater than marginal revenue. • Thus, the profit-maximizing condition of a competitive firm is MC = MR

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