Airline Industry and Contestability Project - What is a contestable market?

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Airline Industry and Contestability                Imran Hans

Airline Industry and Contestability Project

What is a contestable market?

In a contestable market, there are one or a number of firms which profit maximise. In other words the number of firms is irrelevant. The key assumption to make here is that barriers to entry to the industry are relatively low, as is the cost to exit the industry. The existence of potential entrants into the industry will tend to keep profits to their normal level even in the short run, because existing firms will want to deter new entrants from coming into the market. Contestable markets are both productively and allocatively efficient and are likely to be efficient in the short run as well.

The theory regarding the type of profit made in a contestable market is this. Abnormal profit can only be made in the short run, only normal profit will be made in the long run. The reason being is that when firm try to profit maximises in the short run then this will attract new entrants into the market to take some of this profit away from the existing firm. As more competition is attracted then the new prices will force the prices and the profit down. This is the reason why it is only possible to make normal profit in the long run. The threat of potential entrants into the industry means that existing firms will behave competitively, even if the firm is a monopoly.

The key assumption of a contestable market is that it gives the firms the ability to enter and exit the market. It is natural to assume that a monopoly is going to have high barriers to entry, but theory suggests that there is a large dependence on the cost to exit the industry rather than enter it. The cost of exiting and Industry is often termed as sunk costs. These are the costs that a firm can’t recover when they decide to exit the industry. An example of a sunk cost would be money spent on advertising, because you cannot recover the money you spent on advertising. If sunk costs are low or virtually nothing then it is correct to assume that a firm is operating in a contestable market. The lower the sunk cost the greater the contestability of the market.

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The ease at which a firm can enter and exit a market will leave it vulnerable to ‘Hit and Run’ competition. If there is abnormal profit in an industry then newcomers will enter the market, take their share of the excess profit and exit the industry when all the profits disappear.

In the long run firms that are in a contestable market will operate at the very bottom of their average cost curve. If a firm didn’t operate at this level then a new entrant would be able to establish itself, producing at the bottom of its average ...

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