2Out Line Market Structure and Pricing Perfect competition Monopolistic competitionOligopolyThe oligopoly Models- Sweezy Kinked demand curve model,- Price leadership Models- Collusive model, the cartel arrangement- Game theory-MonopolyPrice discriminationNecessary condition for Price DiscriminationPrice Discrimination by Degrees (1st , 2nd, 3rd degree)Summary
3Market Structure and Pricing A market can be defined as a group of economic agents, usually firms and individuals, who interact with each other in a buyer– seller relationship. This is fine as a general definition but it lacks practical applicability in defining a specific market.Economists usually classify market structures into four main types: perfect competition, monopoly, monopolistic competition and oligopoly.The following Table show the Behavior of markets
4Market Structure and Pricing No.of sellersType of productBarrier to entry affectPower to priceNon-price of competitionPerfectCompetitionManyStandardizedNoneMonopolistic CompetitionDifferentiatedLowAdvertising and product DifferentiationOligopolyFewStandardized or product DifferentiatedHighMediumHeavy advertising and DifferentiatedMonopolyOneSingle productVery highHigh Advertising
5Perfect competitionThere are five main conditions for perfect competition to exist:1 Many buyers and sellers. Each of these must buy or sell such a small proportion of the total market output that none is able to have any influence over the market price.2 Homogeneous product. Each firm must be producing an identical product, for example premium unleaded petrol or skimmed milk.3 Free entry and exit from the market. This means that there are no barriers to entry or exit that give incumbent firms an advantage over potential competitors who are considering entering the industry. These barriers, which can represent either demand or cost advantages, are explained in more detail in the next section.
6Perfect competition….4 Perfect knowledge. Both firms and consumers must possess all relevant market information regarding production and prices.5 Zero transportation costs. This means that it does not cost anything for firms to bring products to the market or for consumers to go to the market.
7Monopolistic competition There are five main conditions for monopolistic competition to exist:There are many buyers and sellers in the industry.2. Each firm produces a slightly differentiated product.3. There are minimal barriers to entry or exit.4. All firms have identical cost and demand functions.5. Firms do not take into account competitors’ behavior in determining price and output.
8Oligopoly MarketThe main conditions for oligopoly to exist are therefore as follows:A relatively small number of firms account for the majority of the market.There are significant barriers to entry and exit.There is interdependence in decision-making. Unregulated, comparable products are markedly cheaper.
9Sweezy Kinked demand curve model, This model was originally developed by Sweezy and has been commonly used to explain price rigidities in oligopolistic markets. Price rigidity refers to a situation where firms tend to maintain their prices at the same level in spite Market structure and pricing of changes in demand or cost conditions.The model assumes that if an oligopolistic cuts its prices, competitors will quickly react to this by cutting their own prices in order to prevent losing market share. On the other hand, if one firm raises its price, it is assumed that competitors do not match the price rise, in order to gain market share at the expense of the first firm. In this case the demand curve facing a firm would be much more elastic for price increases than for price reductions. This results in the kinked demand curve.
11Price leadership Models: A commonly observed pattern of behavior in oligopolistic industries is the situation where one firm sets a price or initiates price changes, and other firms follow the leader with a short time lag, usually just a few days. There are various ways in which such behavior can occur, depending on two main factors.1. Product differentiation. For homogeneous products the followers normally adjust their prices to the same level as the leader. In the more common case of differentiated products the price followers generally conform to some structure of recognized price differentials in relation to the leader. E.g. Ford may adjust the prices of various models so that they are given percentages lower or higher than some benchmark GM model.
12: Price leadership Models Type of leadership. There are two main possibilities here. Dominant price leadership refers to the situation where the price leader is usually the largest firm in the industry. In this case the leader is fairly certain of how other firms will react to its price changes, in terms of their conforming to some general price structure,The other main type of price leadership is called barometric. This time the price leader is not necessarily the largest firm, and leaders may frequently change. There is more uncertainty in this case regarding competitive reactions, but the leader is normally reacting to changes in market demand ,cost conditions.
13Collusive model, the cartel arrangement Collusion is the term frequently used to refer to co- operative behavior between firms in an oligopolistic market. This is an agreement among firms, of a formal or informal nature, to determine prices, total industry output, market shares or the distribution of profits.E.G On an international basis the best-known cartel is OPEC, the Organization of Petroleum Exporting Countries,
14Factors affecting success of a cartel Number of sellersFirms are more likely to have disagreements regarding price and output strategiesProduct differentiationThere are different grades according to country of origin, and sellers can also vary payment terms as a form of competition.Cost structures.As with differences in product, differences in cost structures can make co-operation more difficult.Transparency
1511.6 Oligopoly Behavior: Game Theory Overview Game Theory is a study of how people behave in strategic situations. This applies to oligopolies because there are only a few major firms. Their profit will depend on the strategy each firm chooses and the strategy its rival chooses.See the next Figure (4 possible strategies & 2 firms are involved)
17Oligopoly Behavior: Game Theory Overview Oligopolies are encouraged to collude or cooperate with their rivalsRevisit the Game Theory model of decision-makingOligopolies are also encouraged to “cheat”
18MonopolyAfter an analysis of perfect competition it is usual to consider monopoly next. Again, this is not because this is a frequently found type of market structure, but because as an extreme form it provides a benchmark for comparison. As we shall see, it can also be claimed that many firms are in effect limited monopolies.Economists have defined monopoly in many different ways. Literally, it means a single seller in an industry. However, it is preferable to define a monopoly as being a firm that has the power to earn supernormal profit in the long run. This ability depends on two conditions:1 There must be a lack of substitutes for the product. This means that any existing products are not very close in terms of their perceived functions and characteristics. Electricity is a good example.2 There must be barriers to entry or exit. These are important in the long run in order to prevent firms entering the industry and competing away the supernormal profit. We now need to examine them in detail.
19MonopolyThere must be a lack of substitutes for the product. This means that any existing products are not very close in terms of their perceived functions and characteristics. Electricity is a good example.2 There must be barriers to entry or exit. These are important in the long run in order to prevent firms entering the industry and competing away the supernormal profit. We now need to examine them in detail.
23Price Discrimination Conditions necessary: Imperfect competition in the market.(Monopoly)Identifiable customer groups with differing price elasticitiesMaintain separation of groups--prevent resale.
241st Degree Price Discrimination where firms would like to charge the maximum amount that the consumer would be willing to pay For firms this is basically the best situation they can reach, gives them the best opportunity to extract surplus from the consumer.
251st Degree Price Discrimination It requires that the firms know exactly how much each consumer is willing to pay extremely difficult to implement because the firm must have perfect information which is very difficult to have
261st Degree Price Discrimination Even though it is difficult to implement there are still businesses that can implement this style.
271st Degree Price Discrimination Identify and charge each customer what they are willing to pay. Limit: D = MR, no consumer surplus.Same MarketDifferent PeopleDifferent Price
282nd Degree Price Discrimination Quantity discounts. Volume purchases are given lower prices. Need to measure goods and services bought by consumers.setting a discrete schedule of declining prices for a different range of quantities
292nd Degree Price Discrimination allows the firm to charge higher prices to different groups of individuals even though it doesn’t know the maximum amount that each consumer is willing to paythe firms let consumers sort themselves into the groups and price that they are willing to pay
302nd Degree Price Discrimination Different CustomersDifferent PriceSame Market
31ExampleEEPCOwhere it charges higher rates for the first set amount of electric usage and then lower the price depending on the schedule.Ethio telecomwhere it charges lower rates for Happy Hours(09PM-07AM)
332nd Degree Price Discrimination The graph shows where the firm sells it product at one price P1 and at quantity Qa that is point X. With a second degree price discrimination they will also charge a second price on a discrete schedule they had set up. To gain more profits they will charge a price P2 and Qa at Point Y. So they can sell more quantity of their product at a cost that the consumer’s who were not willing to pay at the higher price are now willing to pay at the lower price
343rd Degree Price Discrimination Is when firms recognize that the demand for their product is different for each group of consumers.This pricing strategy can only exist when firms have some price setting power
353rd Degree Price Discrimination The firm must be able to differentiate between consumer segments and be able to put them in groups based upon income or geography.The firm must be able to differentiate between elasticity of demand for consumers.
363rd Degree Price Discrimination when firms recognize that the demand for their product is different for each group of consumers. Firms know that charge different prices to different groups for the same productThe pricing strategy can only exist when firms have some price setting power.
373rd Degree Price Discrimination The firm must be able to differentiate between consumer segments and be able to put them in groups based upon income or geographyThe firm must be able to differentiate between elasticity of demand for consumers.
383rd Degree Price Discrimination Treat each segment as a separate market– then do MR=MC in eachThe firms Segment markets in some way. Charge all in the segment the same prices.
393rd Degree Price Discrimination Different Price in Different PlacesSame People