1. 1 © 2015 Pearson Education, Inc. Monopolistic Competition

2. 2 © 2015 Pearson Education, Inc. Perfect Competition vs. Monopolistic Competition The perfectly competitive markets in the previous chapter had the following three features: 1.Many firms 2.Firms sell identical products 3.No barriers to entry to new firms entering the industry The first two features implied a horizontal demand curve for individual firms, while the third implied zero long-run profit. Monopolistically competitive firms share features 1. and 3.; but their products are not identical to their competitors’. So we expect monopolistically competitive firms to have zero long-run profit, but not to face a horizontal demand curve.

3. LEARNING OBJECTIVE 3 © 2015 Pearson Education, Inc. Demand and Marginal Revenue for a Firm in a Monopolistically Competitive Market 13.1 Explain why a monopolistically competitive firm has downward-sloping demand and marginal revenue curves.

4. 4 © 2015 Pearson Education, Inc. Monopolistic Competition Monopolistic competition is a market structure in which barriers to entry are low and many firms compete by selling similar, but not identical, products. The key feature here is that the products that monopolistically competitive firms sell are differentiated from one another in some way. Example: Starbucks sells coffee, and competes in the coffee market against other firms selling coffee. But Starbucks’ coffee is not identical to the coffee that other firms sell.

5. 5 © 2015 Pearson Education, Inc. Markets best describe the following products? iPhone? Gucci handbag? Florida oranges? “Stonyfield” (brand name) Milk? Natural gas in Davis? Commercial Aircraft? Lipitor (cholesterol drug) before 2011 (patent expired) Lipitor (cholesterol drug) after 2011 Monop. Competition Perfect Competition PC or MC Monopoly Oligopoly Monopoly Monop. Competition

6. 6 © 2015 Pearson Education, Inc. The Demand Curve for a Monopolistically Competitive Firm Starbucks sells caffè lattes; while other firms sell caffè lattes also, some people have a preference for the ones that Starbucks sells. If Starbucks raises the price of its caffè lattes, it will lose some, but not all, of its customers. Therefore Starbucks faces a downward- sloping demand curve for caffè lattes. The downward-sloping demand for caffè lattes at a Starbucks Figure 13.1

7. 7 © 2015 Pearson Education, Inc. Marginal Revenue When Demand Is Downward-Sloping The first two columns show the demand schedule for Starbucks. Total revenue increases initially, then decreases; Starbucks has to lower the price in order to sell additional caffè lattes. Hence marginal revenue is initially positive, then negative. Demand and marginal revenue at a Starbucks Table 13.1 CAFFÈ LATTES SOLD PER WEEK (Q) PRICE (P) 0 1 2 3 4 5 6 7 8 9 10 $6.00 5.50 5.00 4.50 4.00 3.50 3.00 2.50 2.00 1.50 1.00 $0.00 5.50 10.00 13.50 16.00 17.50 18.00 17.50 16.00 13.50 10.00 ― $5.50 5.00 4.50 4.00 3.50 3.00 2.50 2.00 1.50 1.00 ― $5.50 4.50 3.50 2.50 1.50 0.50 –0.50 –1.50 –2.50 –3.50

8. 8 © 2015 Pearson Education, Inc. How a Price Cut Affects Firm Revenue When Starbucks reduces the price of a caffè latte, it can sell more output. Its revenue increases because of the additional sale (at the new price); this is the output effect of the price reduction. But its revenue decreases also. In order to sell the additional caffè latte, it must reduce the price on all cups it will sell. The loss in revenue on the 5 cups it would have sold anyway is the price effect of the price reduction. How a price cut affects a firm’s revenue Figure 13.2

9. 9 © 2015 Pearson Education, Inc. Marginal Revenue Starbucks’ marginal revenue for selling the additional caffè latte is equal to the green area minus the pink area: the output effect minus the price effect. Since the output effect is just equal to the price, marginal revenue is lower than price. For any firm with a downward-sloping demand curve, the marginal revenue curve must therefore be below the demand curve. How a price cut affects a firm’s revenue Figure 13.2

10. 10 © 2015 Pearson Education, Inc. Demand and Marginal Revenue Curves The graph shows the Starbucks’ demand and marginal revenue curves for caffè lattes. After the 6 th caffè latte, reducing the price in order to increase sales results in revenue decreasing (negative marginal revenue); the output effect (equal to the height of the demand curve) can no longer offset the price effect (the vertical difference between demand and marginal revenue curves). The demand and marginal revenue curves for a monopolistically competitive firm Figure 13.3

11. LEARNING OBJECTIVE 11 © 2015 Pearson Education, Inc. How a Monopolistically Competitive Firm Maximizes Profit in the Short Run 13.2 Explain how a monopolistically competitive firm maximizes profit in the short run.

12. 12 © 2015 Pearson Education, Inc. Profit Maximization Just like a perfectly competitive firm, a monopolistically competitive firm should not simply try to maximize revenue. Each additional unit of output incurs some marginal cost. Profit maximization requires producing until the marginal revenue from the last unit is just equal to the marginal cost: MC = MR. This same rule holds for all firms that can marginally adjust their output.

13. 13 © 2015 Pearson Education, Inc. Profit Maximization Using a Table The 1 st, 2 nd, 3 rd, and 4 th caffè lattes each increase profit: MC < MR. The 5 th does not alter profit: MC = MR. The 6 th and subsequent caffè lattes decrease profit: MC > MR. Maximizing profit in a monopolistically competitive market Figure 13.4

14. 14 © 2015 Pearson Education, Inc. Profit Maximization Using Graphs Starbucks sells caffè lattes up until MC = MR. This selects the profit-maximizing quantity. Then the demand curve shows the price, and the ATC curve shows the average cost. Since Profit = (P – ATC) x Q, we can show profit on the graph with the green rectangle. Maximizing profit in a monopolistically competitive market Figure 13.4

15. 15 © 2015 Pearson Education, Inc. Identifying Profit Graphically Be careful to perform these steps in the correct order: 1.Use MC=MR to identify the profit-maximizing quantity. 2.Draw a vertical line at that quantity. 3.The vertical line will hit the demand curve: this is the price. 4.The vertical line will also hit the ATC curve: this is the average cost. 5.The difference between price and average cost is the profit (or loss) per unit. 6.Show the profit or loss with the rectangle with height (P – ATC) and length (Q* – 0), where Q* is the optimal quantity. Maximizing profit in a monopolistically competitive market Figure 13.4b

16. LEARNING OBJECTIVE 16 © 2015 Pearson Education, Inc. What Happens to Profits in the Long Run? 13.3 Analyze the situation of a monopolistically competitive firm in the long run.

17. 17 © 2015 Pearson Education, Inc. How the Entry of New Firms Affects Profits of Existing Firms Suppose demand is relatively high, so that Starbucks can make a profit in the market for caffè lattes. This profit will attract new firms who will compete with Starbucks, reducing the demand for Starbucks’ caffè lattes. Demand falls until, in the long run, no profit can be made: P = ATC. How entry of new firms eliminates profits Figure 13.5

18. 18 © 2015 Pearson Education, Inc. Monopolistic Competition: Short Run, Firm Making Profit In the short run, a monopolistically competitive firm might make a profit or a loss. The situation where the firm is making a profit is above. Notice that there are quantities for which demand (price) is above ATC; this is what allows the firm to make a profit. The short run and the long run for a monopolistically competitive firm Table 13.2a Relationship between Price and Marginal Cost Short Run P > MC Short Run P > ATC Short Run Economic profit Relationship between Price and Average Total Cost Profit and Loss

19. 19 © 2015 Pearson Education, Inc. Monopolistic Competition: Short Run, Firm Making Loss Now the firm is making a loss. Notice that there is now no quantity for which demand (price) is above ATC; this firm must make a (short-run, economic) loss, no matter what quantity it chooses. The short run and the long run for a monopolistically competitive firm Table 13.2b Relationship between Price and Marginal Cost Short Run P > MC Short Run P < ATC Short Run Economic loss Relationship between Price and Average Total Cost Profit and Loss

20. 20 © 2015 Pearson Education, Inc. Monopolistic Competition: Long Run, Firm Breaking Even In the long run, the firm must break even. Notice that the ATC curve is just tangent to the demand curve. The best the firm can do is to produce that quantity. There is no quantity at which the firm can make a profit; the ATC curve is never below the demand curve. The short run and the long run for a monopolistically competitive firm Table 13.2c Relationship between Price and Marginal Cost Long Run P > MC Long Run P = ATC Long Run Zero economic profit Relationship between Price and Average Total Cost Profit and Loss

21. 21 © 2015 Pearson Education, Inc. Zero Profit in the Long Run? Our model of monopolistic competition predicts that firms will earn zero profit in the long run. However firms need not passively accept this long-run outcome. They could: Innovate so that their costs are lower than other firms, or Convince their customers that their product/experience is better than that of other firms, either by actually making it better in some unique way, or making customers perceive that it is better, perhaps through advertising. Think of the long-run as “the direction of trend”; demand will continue to fall to the zero (economic) profit level, unless the firm is able to do something about it.

22. 22 © 2015 Pearson Education, Inc. Making the Connection The Rise and Decline and Rise of Starbucks From the mid-1990s to the mid-2000s, Starbucks achieved strong profits by differentiating its product and experience from other coffeehouses. As other firms started to mimic its experience, Starbucks’ profitability went down. By 2013, Starbucks had engineered a turnaround, with innovations like wi-fi, customization of drinks, a loyalty program, smartphone-based payments, overseas expansion, and higher-quality drinks. But like all monopolistically competitive firms, Starbucks will have to continue to innovate, or the long-run outcome of zero economic profit will catch up to it.

23. LEARNING OBJECTIVE 23 © 2015 Pearson Education, Inc. Comparing Monopolistic Competition and Perfect Competition 13.4 Compare the efficiency of monopolistic competition and perfect competition.

24. 24 © 2015 Pearson Education, Inc. Is Monopolistic Competition Efficient? Last chapter we learned that perfectly competitive firms achieved productive and allocative efficiency. Productive efficiency refers to producing items at the lowest possible cost. Allocative efficiency refers to producing all goods up to the point where the marginal benefit to consumers is just equal to the marginal cost to firms. Monopolistic competition results in neither productive nor allocative efficiency.

25. 25 © 2015 Pearson Education, Inc. Efficiency of Perfectly Competitive Firms In panel (a), a perfectly competitive firm in long-run equilibrium produces at Q PC, where price equals marginal cost, and average total cost is at a minimum. The perfectly competitive firm is both allocatively efficient and productively efficient. Comparing long-run equilibrium under perfect competition and monopolistic competition Figure 13.6a

26. 26 © 2015 Pearson Education, Inc. Inefficiency of Monopolistically Competitive Firms Monopolistically competitive firms in panel (b) produce the quantity where MC=MR. The marginal benefit to consumers is given by the demand curve, so MC≠MB: not allocatively efficient. And average cost is above its minimum point: not productively efficient. Comparing long-run equilibrium under perfect competition and monopolistic competition Figure 13.6a&b

27. 27 © 2015 Pearson Education, Inc. Is Monopolistic Competition Bad for Consumers? The lack of efficiency suggests that monopolistic competition is a bad situation for consumers. But consumers might benefit from the product differentiation. Example: If you were buying a car, would you prefer one a.Produced and sold at the lowest possible cost, but not well-suited to your tastes and preferences; or b.Produced and sold at a higher cost, but designed to attract you to purchasing it? Many consumers are willing to accept a higher price for a differentiated product. So monopolistic competition is not necessarily bad for consumers.

28. LEARNING OBJECTIVE 28 © 2015 Pearson Education, Inc. How Marketing Differentiates Products 13.5 Define marketing and explain how firms use marketing to differentiate their products.

29. 29 © 2015 Pearson Education, Inc. Marketing and Product Differentiation Making customers believe that your product is worthwhile and different from those of other firms is not a trivial exercise. It typically involves some degree of marketing. Marketing: All the activities necessary for a firm to sell a product to a consumer. Once a firm manages to differentiate its product, it must continue to do so, or risk heading toward the long-run outcome of zero economic profit. The process of doing this is known as brand management. Brand management: The actions of a firm intended to maintain the differentiation of a product over time.

30. 30 © 2015 Pearson Education, Inc. Advertising Advertising is a critical element of marketing for monopolistically competitive firms. By advertising effectively, firms can increase demand for their products. But they can also use advertising to differentiate their products: effectively making the demand curve more inelastic. This allows firms to charge a higher price and earn more short-run profit.

31. 31 © 2015 Pearson Education, Inc. Defending a Brand Name Marketing experts and psychologists agree: a critical aspect of marketing is creating a brand name for your product. A successful brand name can help to maintain product differentiation, and delay the ability of other firms to compete away your profits. But firms must always try to maintain the perception of their product as better than others, making sure that, for example: A highly-successful name like Coke, Xerox, or Band-Aid is uniquely associated to that product, and not to generic products, Other firms don’t illegally use their brand name, and Franchisees and others legally allowed to use their brand name maintain the level of quality and service you expect.

32. LEARNING OBJECTIVE 32 © 2015 Pearson Education, Inc. What Makes a Firm Successful? 13.6 Identify the key factors that determine a firm’s success.

33. 33 © 2015 Pearson Education, Inc. What Makes a Firm Successful? A firm’s ability to differentiate its product and to produce it at a lower average cost than competing firms creates value for its customers. Some factors that affect a firm’s profitability are not directly under the firm’s control. Certain factors will affect all the firms in a market. The factors under a firm’s control—the ability to differentiate its product and the ability to produce it at lower cost— combine with the factors beyond its control to determine the firm’s profitability. What makes a firm successful?Figure 13.7