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For a monopoly to exist, there must be high barriers to entry for new firms. Barriers to entry must be strong enough to discourage potential competitors from entering. However, if the number of firms in the market for a specific good or service increases, the perceived value of firms in the market will decrease.
Elasticity of demand: In a complete monopolistic market, the demand curve for the product is the market demand curve. There is only one firm within the industry. The monopolist is the sole seller, and its demand is the demand of the entire market. A monopolist is the price setter, but it is also limited by the law of market demand.
The SSNIP test seeks to identify the smallest relevant market within which a hypothetical monopolist or cartel could impose a profitable significant increase in price. The relevant market consists of a "catalogue" of goods and/or services which are considered substitutes by the customer. Such a catalogue is considered "worth monopolizing" if ...
For price discrimination to succeed, a seller must have market power, such as a dominant market share, product uniqueness, sole pricing power, etc. [9] Some prices under price discrimination may be lower than the price charged by a single-price monopolist. Price discrimination can be utilized by a monopolist to recapture some deadweight loss.
United States v. Alcoa, 148 F.2d 416 (2d Cir. 1945) a monopoly can be deemed to exist depending on the size of the market. It was generally irrelevant how the monopoly was achieved since the fact of being dominant on the market was negative for competition. (Criticised by Alan Greenspan.)
The Pacman conjecture holds that durable-goods monopolists have complete market power and so can exercise perfect price discrimination, thus extracting the total surplus. [1] This is in contrast to the Coase conjecture which holds that a durable goods monopolist has no market power, and so price is equal to the competitive market price.
Suppose Firm A acts as a monopolist. The profit-maximizing monopoly price charged by Firm A is then: = + Since Firm B will never sell below its marginal cost, as long as , Firm B will not enter the market when Firm A charges . That is, the market for good X is an effective monopoly if:
The monopolist will want to sell to the consumer with the lowest valuation. This is because production is costless and by charging a price just above zero it still makes a profit. Hence to separate the consumers, the monopoly will charge first consumer () where is the number of consumers. If the discount factor is high enough this price will be ...