Most market forms given below talk about a homogeneous product. This simply means that they all make the same kind of product (like sugar, or soap), and that the individual consumer does not care where he or she buys from. They simply want to get the cheapest one, since all kinds of sugars (or soaps) look the same anyway.
The major market forms are:
- Perfect competition: there are many firms making a homogeneous product.
- Monopolistic competition, also called competitive market: there are a large number of independent firms. Each firm has a very small proportion of the market share.
- Oligopoly: A market is dominated by a small number of firms which own more than 40% of the market share.
- Oligopsony: A market dominated by many sellers and a few buyers.
- Monopoly: There is only one provider of a product or service.
- Natural monopoly: A monopoly in which economies of scale cause efficiency to increase continuously with the size of the firm.
- Monopsony: There is only one buyer in a market.
The imperfectly competitive structure is quite identical to the realistic market conditions where some monopolistic competitors, monopolists, oligopolists, and duopolists exist and dominate the market conditions.
|Market Structure||Seller Entry Barriers||Seller Number||Buyer Entry Barriers||Buyer Number|
The correct sequence of the market structure from most to least competitive is perfect competition, imperfect competition, oligopoly, and pure monopoly.
The main criteria by which one can distinguish between different market structures are: the number and size of producers and consumers in the market, the type of goods and services being traded, and the degree to which information can flow freely.
Other pages[change | change source]
- Constitutional economics
- Political economy
- Industrial organization
Other websites[change | change source]
- Microeconomics by Elmer G. Wiens: Online Interactive Models of Oligopoly, Differentiated Oligopoly, and Monopolistic Competition