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In [[economics]], '''market structure''' (also known as '''market form''') refers to the degree of competitiveness that exists within a system for producing and allocating goods and services. On the supply side, market structure concerns itself with the level of [[competition]] that exists among [[firms]], as determined by such factors as the number of firms operating within the market, the homogeneity of their products, and the amount of [[market power]] that each retains. The primary types of market structure on the supply side are:

* [[Perfect competition]], in which there are a great many firms all producing the same or highly similar products,
* [[Monopolistic competition]], in which there are a large number of firms that sell differentiated products,
* [[Oligopoly]], in which there are only a few firms, each with substantial market power, and
* [[Monopoly]], in which there is a single firm.

The primary types of market structure on the demand side (i.e. with regard to consumers) are:

* [[Perfect competition]], in which there are a great many buyers,
* [[Monopsonistic competition]], in which there are a large number of buyers with differentiated tastes,
* [[Oligopsony]], in which there are only a few buyers, each with substantial market power, and
* [[Monopsony]], in which there is a single buyer.


[[Category:Economics]]
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