define a contestable market
when a new market entrant equal access to all production techniques avaiable to incumbent firms and are not prohibited from wooing incumbent customers and where entry decisions can be reversed without a cost
what are the characteristics of a contestable market?
how do firms behave in a contestable market?
define sunk costs
costs that cannot be recovered if a firm decided to leave the market
how do sunk costs impact the level of contestability?
higher sunk costs act as a barrier to entry for new firms, becuase they risk making significant losses if they leave the sector, reducing contestibility
what are the types of barriers to enter and exit a market?
what is hit and run entry?
when a firm enters a market to take advantage of the temperarily high supernormal profits
a key aspect of a highly contestable market
“Analyse how firms might be affected by increased contestability.”
include diagram
A contestable market exists when there is freedom of entry and exit into an industry and there are limited or no sunk costs of production. In the absence of actual competition or threat of a rival entering a market, an unregulated firm could maximise profit where MR=MC. But if a market becomes more contestable – e.g. through a policy of liberalization, then competitive pressures will keep prices down. Instead of profit maximising, existing firms would have an incentive to cut prices perhaps to a level where normal profit is made. This is at an output where price (AR) = average cost. Firms are making enough profit to stay in the market without attracting rivals. Actual and threatened competition intensifies incentives for businesses to control their unit costs by avoiding any X-inefficiencies.