CHAPTER 8: SECTION 1 A Perfectly Competitive Market

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1 CHAPTER 8: SECTION 1 A Perfectly Competitive Market

2 Four Types of Markets A market structure is the setting in which a seller finds itself. Market structures are defined by their characteristics. Those characteristics include the number of sellers in the market, the product that sellers produce and sell, and how easy or difficult it is for new firms to enter the market. Perfectly competitive Monopolistic Monopolistic competitive Oligopolistic

3 Characteristics of a Perfectly Competitive Market A perfectly competitive market has the following characteristics: It has many buyers and many sellers. All firms sell identical goods. Buyers and sellers have relevant information about prices, product quality, sources of supply, and so on. Firms can easily enter and exit the market. No entity, such as government, prevents entry into or exit from the market. Examples of perfectly competitive markets include wheat farming, soybean and corn farming, milk production and the stock markets.

4 Sellers in a Perfectly Competitive Market Are Price Takers A price taker is a seller that can only sell his or her goods at the equilibrium price. Price takers could sell at a price lower than the equilibrium price, but they have no reason to. All of a particular seller s output can be sold at the equilibrium price. Even if a market does not perfectly match the four characteristics of a perfectly competitive market, it may still be considered a perfectly competitive market.

5 What Does a Perfectly Competitive Firm Do? A perfectly competitive firm produces the quantity of output at which marginal revenue equals marginal cost. Because all firms in a perfectly competitive market are price takers, the competitive firm has no choice in the selling price.

6 Profit Is a Signal in a Perfectly Competitive Market In a perfectly competitive market, profit is a signal to firms that are currently not in the market. It says, Come over here and get me. Because it is easy to enter a perfectly competitive market, new firms will enter the market as long as firms in the market are earning a profit. As new firms enter the market, they increase supply and decrease profits. They will continue to enter the market until profits decrease to the point that firms in the market are not earning a profit.

7 Profits May Be Taxed Away Government may enact a tax to reduce the profitability of a market. This tax will discourage new firms from entering the market, reducing competition. The unintended effect is higher prices for consumers.

8 Applying the Principles 5. A price taker can only sell his or her goods at the equilibrium price. 6. Buyers would not purchase the goods at a higher price because there would be less expensive alternatives. There s no reason to sell at a lower price. 7. Marginal Revenue = Marginal Cost 8. The equilibrium price

9 CHAPTER 8: SECTION 2 Monopolistic Markets

10 Characteristics of a Monopoly A monopolistic market has the following three characteristics: It has a single seller. The single seller sells a product that has no close substitutes. The market has extremely high barriers to entry. A barrier to entry is anything that prohibits a firm from entering a market.

11 How Monopolies Differ from Perfect Competitors A monopoly firm is a price searcher that is, a seller that can sell some of its output at various prices. Over time, a monopoly firm finds the highest price at which it can sell its entire output. There are limits to how much a monopolist can charge for a product. These limits are determined by the amount of demand for the product. No monopoly seller is guaranteed profits. A firm earns profits only if the price is greater than the total average cost.

12 Barriers to Entry Legal barriers to entry in a monopoly market include public franchises, patents, and copyrights. A public franchise is a right that the government has granted to a firm. It permits the firm to provide a particular good or service, and it prevents all other firms from providing the same good or service. (ex. Water companies, Private mail carriers)

13 A natural monopoly occurs when a firm has such a low average total cost that it is the only firm that can survive in the market. If one firm can sell a product for less than it costs other firms to produce the same product, competitors will leave the market. Exclusive ownership of a scarce resource by one firm can be a barrier to entry in a particular market. The government can create a monopoly by legally protecting a firm from competition.

14 Antitrust and Monopoly Antitrust laws are pieces of legislation that are passed to control monopoly power and preserve and promote competition. Examples of antitrust laws are as follows. The Sherman Antitrust Act, passed in 1890, states that either attempting to become a monopolist or trying to restrain trade is illegal. The Clayton Act, passed in 1914, made certain business practices illegal when their effects may be to substantially lessen competition or tend to create a monopoly, through price discrimination or tying contracts. The Federal Trade Commission Act of 1914 declared that unfair methods of competition in commerce were illegal. This act prohibited aggressive price-cutting.

15 Antitrust Acts

16 The Robinson-Patman Act was passed in This act attempted to decrease the failure rate of small businesses by protecting them from large chain stores. It has been criticized by some economists as protecting small businesses and hurting market competition. The Wheeler-Lea Act of 1938 gave the Federal Trade Commission (FTC) the power to deal with false and deceptive acts or practices by businesses. Antitrust laws do not usually apply to natural monopolies. To deal with natural monopolies, the government often uses some kind of regulation. For instance, the government might set the selling price or specify a rate of profit.

17 CHAPTER 8: SECTION 3 A Monopolistic Competitive Market

18 Characteristics of a Monopolistic Competitive Market A monopolistic competitive market has the following characteristics: It has many buyers and many sellers. Firms in the market produce and sell slightly differentiated products. This characteristic is unique to a monopolistic competitive market. Firms in the market can easily enter and exit the market.

19 Monopolistic Competitive Firms Are Price Searchers In a monopolistic competitive market, a firm can change the price of its product and still expect to sell some, if not all, units. This is because what it sells is not identical to any other product in the market. What Do Monopolistic Competitive Firms Do? Again, monopolistic competitive firms produce the quantity of output at which marginal revenue equals marginal cost. The price at which they sell their product is the highest price per unit at which they can sell their entire output.

20 How Are Monopolistic Competitors Products Different? Even similar products can be differentiated. For example, two physically identical products that are sold in different locations are considered different products. Packaging, sales service, and delivery options are further examples of differentiation. Most firms would rather differentiate their products from competitors. Doing so allows them to act more as monopolistic firms when determining price.

21 What Matters Is How Much Competition a Seller Faces How much competition a seller faces principally depends on two factors: how close to unique a seller s product is how easy it is for new sellers to enter the market How much competition does a monopoly seller face? It faces less competition than either a perfect competitor or a monopolistic competitor. It sells a product that has no close substitutes. Consumers buying from monopoly sellers have fewer options available to them.

22 CHAPTER 8: SECTION 4 An Oligopolistic Market

23 Characteristics of an Oligopolistic Market An oligopolistic market has the following characteristics: It has few sellers. Firms in the market produce and sell either identical or slightly differentiated products. The barriers to entry are significant. Oligopolistic firms are price searchers. They can raise the price of their good and still sell some, or all, of their product. Oligopolistic industries can be identified by looking at the percentage of sales accounted for by the top four firms in the industry. If only a few firms account for a large percentage of sales, then the market is considered oligopolistic.

24 How Much Competition Do Oligopolists Face? According to the conditions that characterize oligopoly, an oligopolist s product is not unique, so the market should be competitive. However, it is difficult to enter an oligopolistic market.

25 Cartels A cartel agreement specifies how the firms that entered into the agreement will work together to reduce the competition among them. In the United States, cartel agreements are illegal.

26 Is It Buyers Against Sellers or Sellers Against Buyers? The threat of actual or potential competition from other sellers leads sellers to share the same interests as buyers. For instance, both sellers and buyers want to keep prices down. Buyers want to buy lower-cost items so that they have more money available for other purchases. Sellers want to sell lower-cost items so that they can beat their competitors in pricing. Competition between sellers tends to keep both prices and costs down.

27 Price Discrimination Price discrimination occurs when a seller charges different prices to different buyers for the same product, and the cost of offering the product is the same for all those buyers. A seller may want to price discriminate to sell all of its output for the highest total revenue. For price discrimination to work, different customers must be willing and able to pay different prices for a good. Also, it must be impossible, or extremely costly, for a customer receiving the low price to resell the product to other potential customers.

28 A senior discount is an example of price discrimination. Price discrimination is illegal only if it results in reduced competition or if the discriminating sales cross state lines. Price discrimination is legal as long as no injury occurs to competition. It is also legal if the seller can show that charging a lower price to some customers is necessary to adequately compete in the market.

29 Conditions That Characterize Various Markets

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