2Learning Objectives After this chapter, you should be able to: Define and measure concentration ratios and the Herfindahl-Hirschman index.Describe and discuss the competitive spectrum.Analyze the kinked demand curve.Explain and discuss administered prices.Experiment with game theory.Discuss the effects of cutthroat competition in the college textbook market.
3Oligopoly Defined Oligopoly: an industry with just a few sellers. How few? So few that at least one firm is large enough to influence price.Product can be identical, similar, or differentiated.When we talk about big business in the U.S., we’re talking about oligopolies. Examples are:Coca Cola, McDonald’s, GM, ExxonMobil, IBM, Boeing, CBS, NBC, Kellogg, General Mills, other industrial giants that have become household names.
4Oligopoly’s Importance Oligopoly is the most prevalent type of industrial competition in the U.S. as well as in most of the noncommunist industrial west.The vast majority of our GDP is accounted for by firms in oligopolistic industries.
5Oligopoly BehaviorThe crucial factor under oligopoly is the small number of firms.Because there are so few firms, every competitor must think continually about the actions of its rivals.What each does could make or break the others.Thus, there is a kind of interdependence among oligopolists.
6Two Measures of the Degree of Oligopolization Concentration RatioHerfindahl-Hirschman Index
7Concentration RatiosThe concentration ratio: the percentage share of industry sales of the top 4 (leading) firms in the industry.Industries with high concentration ratios are very oligopolistic.
8Concentration Ratios in Selected Industries, 2010
9Calculate the Concentration Ratio (CR) Firm Percent of salesA 14 %B 4C 23D 5E 2F 8G 17H 10I 2J 5Total %Concentration ratio is= 69
10Two Key Shortcomings of Concentration Ratios Concentration ratios do not include imports.Ignores imports; in car industry, ignores hundreds of thousands of Volkswagens, Saabs, BMWs, Audis, Jaguars, Porsches, and Rolls Royce's.Concentration ratios tell us nothing about the competitive structure of the rest of the industry.Are all the firms relatively large or are they small?When the remaining firms are large, they are not as easily dominated by the top 4 as are dozens of relatively small firms.CRs measured for the U.S. have become less meaningful with increased globalization; perhaps it’s better to calculate with global markets.
11Oligopoly in the Automobile Industry: The Growing Influence of Foreign Firms April 2010 data
12Herfindahl-Hirschman Index (HHI) HHI: the sum of the squares of the market shares of each firm in the industry.A monopoly has 100% of the market share.1002 = (100 x 100) = 10,000You cannot get a bigger HHI number than 10,000.
13Calculate the HHIHHI: the sum of the squares of the market shares of each firm in the industry.An industry has 2 firms, each with 50% of the market.HHI = = 2, ,500 = 5,000An industry has 4 firms, each with 25% of the market.HHI = = = 2,500The U.S. Department of Justice uses the HHI to decide whether an industry is highly competitive; it considers an industry with HHI < 1,800 competitive.
14The Competitive Spectrum The Degrees of Competition in Oligopoly
15CartelsCartel: a combination of firms that acts as if it were a monopoly.The leading firms in an industry band together to restrict output and, consequently, increase prices and profits.If the demand is there, oligopolistic firms can openly collude to control supply and, to a large degree, market price.Example: OPEC and the price of oil.A cartel is the most extreme case of oligopoly
16Withholding Supply to Raise Price When supply is lowered from S1 to S2, price rises from P1 to P2.
18Open Collusion Slightly less extreme than a cartel Operates like the alleged MafiaSome type of territorial division of the market among the firms in the industryThis type of arrangement gives each firm in the market a regional monopoly.The firm may have only 15 or 20 percent of the market, but under this type of arrangement, its pricing behavior is that of the monopolist.
19The Colluding Oligopolist This graph could also belong to the monopolist or the monopolisticcompetitor in the short run.
20Covert Collusion Usually involves price-fixing In the late 1950s, General Electric, Westinghouse, Allis-Chalmers and other leading electrical firms conspired to fix the price of electrical transformers, turbines, and other equipment.They rigged government bids by taking turns making (high) low bids, bilking the public of hundreds of millions of dollars.In 1961, the U.S. Supreme Court found 7 high ranking corporate officials guilty of illegal price-fixing and market sharing agreements.They got short jail sentences.Their employers paid their fines and their salaries while in jail, and they got their old job back after they got out.Important 2008 price fixing case in the European Union; 4 companies in the auto glass market were fined $1.77 billion.Executives met secretly in airports and hotels in Brussels, Frankfurt, and Paris to divide the market and discuss their contracts with automakers.No jail time; they were demoted.
21Examples of Other Cases of Collusion In 1996, Archer Daniels Midland Company pleaded guilty and paid a $100 million criminal fine for its role in two international price-fixing conspiracies.In 1999, an arrangement was uncovered that fixed worldwide vitamin prices as much as 25% above the market level.In 2004, Schering-Plough (now merged with Merck) paid $350 Million in fines for overcharging Medicaid.
22Price Leadership Playing follow the leader One company raises prices and shortly after, the other companies in the same market do the same.Examples: the prime rate set by the big banks, price hikes by Delta Airlines.Collusion is most likely to succeed when there are few firms and high barriers to entry.
23Cutthroat Competition An extreme case, but common in the U.S.The cutthroat competitor’s actions are based on assumptions about their rivals’ behavior.Assumption #1: “If I raise my price, my competitors won’t raise their price.”Assumption #2: “If I lower my price, my competitors will also lower their price.”Therefore, the cutthroat competitor keeps the price just where it is—”sticky prices.”Examples:McDonald’s and Burger KingCostco and Sam’s ClubCoke and Pepsi
24The Kinked Demand Curve of the Cutthroat Oligopolist Sticky priceat the kink
25Full Graph of the Oligopoly (Cutthroat Competitor) Graph of the oligopolist is similar to that of the monopolist.Therefore, the oligopolist is analyzed in the same manner with respect to price, output, profit, and efficiency.Price is higher than the minimum point of the ATC curve, therefore the oligopolist is not as efficient as the perfect competitor.The oligopolist has a higher price and a lower output than does the perfect competitor.The oligopolist, like the monopolist, makes a profit.
26The Cutthroat Oligopolist Note discontinuity(gap) in MR curve.No cutthroat oligopolist will raise or lower price. They keep the price just where it is: at the kink in the D curve.
27The Cutthroat Oligopolist Find P* and Q*Calculate ProfitP* = $27Firms set Q* where MR = MR, so Q* = 4Profit = (P – ATC) x Q*($27 – $24) x 4 = $12
28Game TheoryDefinition: the study of how people behave in strategic situations.One application is a duopoly: an industry with just 2 firms.The behavior of one firm affects the other.Should they collude or compete?Example: 2 bottled water companies, Maine Water Company and Michigan Water Company.
29Four Profit Outcomes for the Bottled Water Duopoly Should they collude to charge high prices?Answer: Yes, because if your competitor lowers his/her price, you will also lower yours, so you both lose. You both win in collusion.
30Conclusion: The Competitive Spectrum At one end, the cartel, which no longer operates within the U.S. economy, although it may be found in world markets.At the other end, the cutthroat competitor, the firm that will stop at nothing to beat out its rivals. (e.g. fast food chains)Where is the U.S. economy?It depends upon the industry and the situation.
31Current Issue: Cutthroat Competition in the College Textbook Market Unlike nearly any other market, you, as a consumer of college textbooks have only 1 choice.Do I buy my books new or used?Typically, used books are bought back at 50% and then resold next semester at 75% of the price.If students had a say in choosing their own texts, you can be sure publishers would produce no-frills texts at much lower prices.With only 3 major textbook publishers today, the odds of this happening are non-existent.
32Questions for Further Thought and Discussion Think about the things that you buy in your local area (around school or home).Are there any products that you purchase from a market dominated by only a few firms?Are these local, regional, national or international oligopolies?Are they in similar industries to those with very high concentration ratios listed in the text?
33The Four Types of Competition: A Review (Appendix) Learning ObjectivesAfter this appendix, you should be able to:Define and analyze perfect competition.Define and analyze monopoly.Define and analyze monopolistic competition.Define and analyze oligopoly.
34The Four Types of Competition: Definitions (Number of Sellers and Type of Product)
35The Four Types of Competition: Profit or Loss in the Short Run or Long Run Perfect CompetitionSR: profit or lossLR: break evenMonopolyNo distinction between SR & LR (profit)Monopolistic CompetitionOligopolyLR: profit
37Questions for Thought and Discussion Which of the 4 market structures charges higher prices and sells less?Which of the 4 market structures is efficient in the long run?Suggest a name of a firm/company that operates under each of the 4 market structures, if possible.