These obstacles to new competition occur when existing firms in a market enjoy significant economies of scale.
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Price leadership
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A pricing strategy in which firms competing to supply a market avoid price competition by setting their prices at or close to those set by the market leader.
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Imperfect Competition
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A market structure in which numerous firms compete to supply the market with an identical product and have no control over the market price.
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Market Structure
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The organisational and other characteristics of a market such as the degree of competition or collusion between firms.
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Pure Monopoly
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A market structure in which one firm is the sole supplier of the product.
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Legal Monopoly
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An organisation that has the exclusive legal right to provide a particular product. E.g due to having a patent.
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X-inefficiency
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This occurs when a monopoly has little incentives to control its costs because it does not have to compete with other firms. This causes its average cost of production to be higher than necessary.
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Competition policy
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Laws and regulations designed to promote competition and to prevent or reduce anti-competitive behaviors.
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Natural Monopoly
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This occurs when the most efficient number of firms supplying a market is one.
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Price War
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A period of fierce competition in which competing firms repeatedly try to undercut their rivals prices in an attempt to increase their shares of the market.
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Abnormal profit
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An excessive or monopoly profit above the level of profit firms would normally earn if the market was competitive one instead.
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Cartel
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A strategy used by one or more firms in a market to eliminate or prevent competition by cutting prices to a very low level, often below the average costs of competing firms.
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Cost plus pricing
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A pricing strategy in which the selling price is determined by adding a mark-up for profit to the average cost of production.
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Price Collusion
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Competing firms working together, often illegally, to control or fix their prices usually at artificially high levels.
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Contestable Market
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A market which has no or low barriers to entry so that new firms can come into the market to compete existing firms.
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Penetration Pricing
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A pricing strategy designed to quickly attract costumers to a new or redesigned product by initially setting price low.
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Perfect Competition
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Any market structure in which firms are able to differentiate their products from those of their rivals and therefore have some degree of control over the market price of their products.