Perfect competition Flashcards
Whats a market structure
The market environment in which a firm operates
Basic definition of perfect competition
A form of market structure that produces allocative and productive efficiency in the long run equilibrium
Definition of a price taker
A firm that must accept whatever price is set in the market as a whole due to a lack of market power
Definition of homogenous product
Because products are seen as identical by consumers, there are no brand loyalties so all products are (perfect) substitutes ie agricultural products
Define perfect knowledge
When all firms in an industry know prices and costs of other firms and no firm has a comparative production advantage
What are the 5 assumptions of perfect competition
1) There are many buyers and sellers
2) the product is homogenous
3) perfect knowledge between all firms
4) profit maximisation is an objective
5) there are no barriers to entry or exit
how can the government increase perfect competition
- force companies to have profit maximisation as an objective
- give start up subsidies and tax breaks
- provide information for new firms and for production
- discourage mergers or takeovers
- introduce minimum safety or quality standards
- give firms access to the same technology (deny patents)
Advantages of perfect competition theory
- leads to static efficiency= the right amount of products are produce to create an equilibrium at the correct market price due to both allocative and productive efficiency. Therefore S meets D at the right place and the free market is working efficiently
- An ideal market to compare with, and allows governments to identify markets very near to perfect competition and subsequently direct them to perfect competition
Disadvantages of perfect competition theory
- Does not lead to dynamic efficiency, no supernormal profits to invest into R +D
- Assumptions very rarely hold so can’t be used to analyse a range of markets as most markets have barriers to entry in the form of startup costs
What does the usefulness of perfect competition theory depend on
the usefulness of perfect completion theory depends not on the accuracy of the assumptions made, but the usefulness of the predictions about the behaviour of firms in the market labelled as perfect competition. Are firms going to behave in a way that perfectly conforms with perfect competition??